2022年初高中数学衔接因式分解 .pdf

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1、第二讲因式分解知识清单一、常用的运算公式1、完全平方公式：2222)(bababa2、平方差公式：22)(bababa3、立方差公式：3322)(babababa4、立方和公式：3322)(babababa5、完全平方公式：2222222,2)(babababababa6、三个数的完全平方公式：cabcabcbacba222)(22227 完全立方公式：322333223333.33)(babbaabababbaaba二、常用的因式分解1.因式分解的定义：把一个多项式化为几个最简整式的乘积的形式，这种变形叫做把这个多项式因式分解（也叫作分解因式）2.因式分解的常用方法：提取公因式法：公式法（乘

2、法公式、求根公式）；十字相乘法；分组分解法。自主练习：问题 1：平方差公式下 列 各 式：)1)(1(aa；)1)(1(aa；)1)(1(aa；)1)(1(aa能利用平方差公式计算的是问题 2：完全平方公式若31aa，求2)1(aa的值问题 3：立方和（差）公式设0422xx，求93x的值问题 4：提取公因式法分解因式：（1）2242abba（2）)5()5(2baba问题 5：公式法分解因式（1）412xx（2）162a（3）142xx问题 6：十字相乘法分解因式：（1）232xx（2）2762xx问题 7：分组分解法分解因式：yxxyx332例题讲解例 1：化简：)1)(1)(1)(1(2

3、2xxxxxx文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N

4、4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W

5、5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N

6、4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W

7、5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N

8、4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W

9、5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3例 2：已知4,4cabcabcba，求222cba的值例 3、把下列各式分解因式（1）22)()23(yxyx（2）22338baba例 4：把下列各式分解因式：（1）byaxbayx222222（2）22)24(4xx巩固拓展1、)3121(419122abba（_）2、若kmxx212是一个完全平方式，则k=3、已知2)(,8)(22nm

10、nm，则22nm4、不论 a，b 为何实数，84222baba的值（）A、总是正数B、总是负数C、可以是零D、可以是正数也可以是负数5、若实数 x，y，z 满足(x-z)2-4(x-y)(y-z)=0，则下列式子一定成立的是（）A、x+y+z=0 B、x+y-2z=0 文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:

11、CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z

12、2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:

13、CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z

14、2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:

15、CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z

16、2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3C、y+z-2x=0 D、x+z-2y=0 6、化简：20172016)23()23(7.

17、在多项式中x2+7x+6；x2+4x+3；x2+6x+8；x2+7x+10；x2+15x+44，有相同因式的是（）A、只有 B、只有C、只有 D、和；和；和8、若多项式 x2-3x+a可分解为(x-5)(x-b)，则 a、b 的值分别是（）A、10,2 B、10,-2 C、-10,-2 D、-10,2 9、多项式 2x2-xy-15x2的一个因式是（）A、2x-5y B、x-3y C、x+3y D、x-5y 10、把下列各式分解因式：（1）523623913xbaxab（2）zyxzyxm)(（3）3132x（4）338ba（5）3762xx（6）12xx文档编码:CM8L4Y3N4F4 HB

18、2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J

19、3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB

20、2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J

21、3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB

22、2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J

23、3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB

24、2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3（7）913424xx（8）1222baba10、已知：052422baba，求abaabba4)(2的值因式分解练习题一、填空题：2(a 3)(3 2a)=_(3 a)(3 2a)；12若 m2 3m 2=(ma)(m b)，则 a=_，b=_；文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q

25、9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F

26、4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q

27、9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F

28、4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q

29、9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F

30、4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q

31、9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J315当 m=_ 时，x2 2(m3)x 25 是完全平方式二、选择题：1下列各式的因式分解结果中，正确的是（）Aa2b7abbb(a27a)B3x2y 3xy6y=3y(x 2)(x 1)C8xyz6x2y22xyz(4 3xy)D 2a24ab6ac 2a(a2b3c)2多项式m(n2)m2(2 n)分解因式等于（）A(n 2)(m m2)B(n2)(m m2)Cm(n2)(m 1)D m(n2)(m 1)3在下列等式中，属于因式分解的是（）Aa(x y)b(mn)ax bm aybn Ba22abb2

32、1=(ab)21 C 4a2 9b2(2a3b)(2a 3b)Dx27x8=x(x 7)8 4下列各式中，能用平方差公式分解因式的是（）Aa2b2 B a2b2 C a2b2 D(a2)b25 若 9x2mxy16y2是一个完全平方式，那么 m的值是（）A 12 B 24C12 D 126把多项式an+4an+1分解得（）Aan(a4a)B an-1(a31)Can+1(a1)(a2 a1)Dan+1(a1)(a2a 1)7若 a2a 1，则 a42a33a24a 3 的值为（）文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 H

33、B2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9

34、J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 H

35、B2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9

36、J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 H

37、B2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9

38、J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 H

39、B2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3A8 B7 C10 D12 8已知 x2y22x 6y10=0，那么 x，y 的值分别为（）Ax=1，y=3 Bx=1，y=3 Cx=1，y=3 Dx=1，y=3 9把(m23m)48(m23m)216 分解因式得（）A(m1)4(m2)2 B(m1)2(m2)2(m23m 2)C(m4)2(m1)2 D(m1)2(m 2)2(m23m 2)210把 x27x60 分解因式，得（）A(x 10)(x 6)B(x 5)(x 12)C(x 3)(x 20)D(x 5)(x 1

40、2)11把 3x22xy8y2分解因式，得（）A(3x 4)(x 2)B(3x 4)(x 2)C(3x 4y)(x 2y)D(3x 4y)(x 2y)12把 a28ab 33b2分解因式，得（）A(a 11)(a 3)B(a 11b)(a 3b)C(a 11b)(a 3b)D(a 11b)(a 3b)13把 x43x22 分解因式，得（）A(x22)(x21)B(x22)(x 1)(x 1)C(x22)(x21)D(x22)(x 1)(x 1)14多项式x2axbx ab 可分解因式为（）A(x a)(x b)B(x a)(x b)C(x a)(x b)D(x a)(x b)文档编码:CM8L

41、4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5

42、ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L

43、4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5

44、ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L

45、4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5

46、ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L

47、4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J315一个关于x 的二次三项式，其x2项的系数是1，常数项是12，且能分解因式，这样的二次三项式是（）Ax211x12 或 x211x12 Bx2x12 或 x2x12 Cx24x12 或 x24x12 D以上都可以16下列各式x3x2x1，x2 yxy x，x22xy21，(x23x)2(2x 1)2中，不含有(x 1)因式的有（）A1 个B2 个C3 个D4 个17把 9x

48、212xy 36y2分解因式为（）A(x 6y 3)(x 6x3)B(x 6y3)(x 6y3)C(x 6y 3)(x 6y3)D(x 6y3)(x 6y3)18下列因式分解错误的是（）Aa2bcac ab=(a b)(a c)Bab5a3b15=(b 5)(a 3)Cx23xy2x6y=(x 3y)(x 2)Dx26xy19y2=(x 3y1)(x 3y1)19已知 a2x22x b2是完全平方式，且 a，b 都不为零，则 a 与 b 的关系为（）A互为倒数或互为负倒数B互为相反数C相等的数D任意有理数20对 x44 进行因式分解，所得的正确结论是（）A不能分解因式 B有因式x22x2 C(

49、xy 2)(xy 8)D(xy 2)(xy 8)21把 a42a2b2b4a2b2分解因式为（）A(a2b2 ab)2 B(a2b2ab)(a2b2ab)C(a2b2ab)(a2b2ab)D(a2b2ab)222(3x 1)(x 2y)是下列哪个多项式的分解结果（）A3x26xyx2y B3x26xyx2y 文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z

50、2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码:CM8L4Y3N4F4 HB2Z4P3Z2H5 ZY8W5Q9R9J3文档编码: