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1、41二次根式的知识点汇总知识点一：二次根式的概念形如（，二.1）的式子叫做二次根式。注：在二次根式中，被开放数可以是数，也可以是单项式、多项式、分式等代数式，但必须注意：因为负数没有平方根，所以一；二 I 是为二次根式的前提条件，如门，-，.次根式，而,等都不是二次根式。判断下列代数式中哪些是二次根式？x a2 2a 2，、-x(x 巩固2、下列各式中,是二次根式是（知识点二：取值范围1.二次根式有意义的条件：由二次根式的意义可知，当a 0 时，二；有意义，是二次根式，所以要使二次根式有意义，只要使被开方数大于或等于零即可。2.二次根式无意义的条件：因负数没有算术平方根，所以当 a(B)xV(
2、C)x _ 5(D)1、下列各式中,不是二次根式的是（(A)X(B)x 30(D)b2 二等是例题2，-16,2J3-x巩固 使代数式一2有意义的x取值范围是（）X 2A x=-2;B x 3 且x=-2;C.x 3，且x=2;D.x 3 且x2；知识点三：二次根式?卫（：二.）的非负性仁（一丄 I）表示 a 的算术平方根，也就是说，血说0）是一个非负数，即晶10（一;二.1）。注：因为二次根式 _ I）表示 a 的算术平方根，而正数的算术平方根是正数，0 的算术平方根是0，所以非负数（一?:二.）的算术平方根是非负数，即上 0（二丨），这个性质也就是非负数的算术平方根的性质，和绝对值、偶次方
3、类似。这个性质在解答题目时应用较多，如若 J-:11，则 a=0,b=0;若加:-，则 a=0,b=0;若丄；11,则 a=0,b=0。例题 已知厂、2-x?-Jx-2 T，则 二x知识点四：二次根式（，卫）：的性质卅厂-；（一：_|）文字语言叙述为：一个非负数的算术平方根的平方等于这个非负数。注：二次根式的性质公式：川-（，二 I）是逆用平方根的定义得出的结论。上面的公式也1可以反过来应用：若则，如：?.0)-x a a C.、-2a=a,-2a D.(x+2 Jxy+y)说,x y)=-,x+Jy 4.在下列各式的化简中，化简正确的有()?.a3=a J a 5x Jx-x=4x J x
4、6a a=3a2ab 2b b A.1 个B.2 个.2 cm3 cm,那么能与它们组成直角三角形的第三条线11.化简J225 7.04=_，丁11721082=_ 12.计算:3“5a，2j10b=13.若最简二次根式2j5x2+1与J7x2-1是同类二次根式，则x=_ 1 14.把根式 a彳根号外的a移到根号内，得_.24+1=10.6 6 5.已知二条线段的长分别为A.1cmB?先 5cm C.5cmD6.已知an 时，.(n-m)2_，当a _ 时,3a 段的长是（）、填空题（每题2 分，共 20 分）文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3
5、文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:C
6、K4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T
7、9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7
8、 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3
9、R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4
10、 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7
11、A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3615.二次根式一3.、3x与.2ax的和是一.个.二次根式，则正整数a的最小值为_ 其和为16.观察下列各式：2 2=2?2；3 3=F 3 3 8 a-1 3（2）若a，b=3，则?.ab w；2（3）若a，b=6，则.ab 3；根据以上三个命题所
12、提供的规律猜想：若a 9，则.ab w25.（6 分）阅读下面的解题过程，判断是否正确？若不正确，请写出正确的解答。已知m为实数，化简:_ 1 _ 解：原式=mJm m -m m=-m-1.-m 3 3；4.：;用n（n _2）的等式表达你所观察得到的解答题（共68 分）17.（5分）计算：a-18.（5分）计算：、2219.（5分）解方程:20.（5分）解不等式：21.（5分）已知：x-22.（5分）化简并求值1-2aa2a2（212 4 1-3 48）815x _80=4x 5,3.2（x-.3）_.、6（x 1）Q，求x22 4的值.x 23.（5 分）已知实数a 满足|2003 a|+
13、a-2004=8,贝 9 a-20032的值是多少?24.（5 分）已知正数a和b，有下列命题：（1）若a 2，则ab 5 C、x1 B、x 1 D、x 2 的是（）2 x B、x+2 C、x 2 D、5、在下列根式中，不是最简二次根式的是（辱 D a2+l B、2x+1 C、0.1y 6、7、下面的等式总能成立的是（a=a B、a a=a2 C m 为实数，则整数m+4m+5 的值B、正整数C、正数)、a?b=ab D、ab=a?b 一定是()D、负数已知；的正确结果为（.y9、10、y 若代数式，（2 a）2+（a 4）2的值是常数 2,贝 U a 的取值范围是（a 4 B、a 2 C、2
14、 a0,化简二次根式文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5
15、I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档
16、编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4
17、L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y
18、10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 H
19、B9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8
20、N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I310A 0.12 B、18 C、1；11、如果最简根式3a 8 与 17 2a 围是()A x 10 C、x10 12、若实数 x、y 满足 x2+
21、y2 4x 2y+5=0,则、的值是（）3y 厶/x B、3+2 C、3+2.2 D、3 2 2 二、填空题x 一 1 1、要使 Y 有意义，则 x 的取值范围是。#3 x 2、_ 若 Ja+4+Ja+2b 2=0，贝U ab=_。3、若 1 a2与.a2 1 都是二次根式，那么1 a2+a2 1=_ 4、若 y=1 2x+2x 1+(x 1)2，贝 H(x+y)2003=_。5、_ 若 迈 x1+寸 3 x,化简 p(x+2)2 3(x+3)3=_。6、_若.(a+1)2=.(a 1)2，贝 U a=.D、一75 是同类二次根式，那么使4a 2x 有意义的 x 的范x+y 文档编码:CK4L
22、10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y1
23、0T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB
24、9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N
25、7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN
26、5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I
27、7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编
28、码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3117、比较大小：3 5 2 6.11 .10.14 13文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9
29、D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7
30、V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5
31、N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7
32、I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码
33、:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L1
34、0T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10
35、T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3128、若最简根式m 3 与 5m+3 是同类二次根式，则9、已知若=233=33m _ 414_=4 14_，请你用含 n 的式子将其中蕴涵的规律表示出来:10、若 5 的整数部分是1 a，小数部分是b，则a-b=一 1 一_ 211、已知x=-a，贝 U 4x+x 12、已知；3 .:5 甘
36、 3+?；5，则化简a 得_._ 三、计算与化简1、(也+谑)1+寸(-2)2+8 2 1、3+1 1 1 5-3 5+3 3、(1+2-3)(1-2+3)+2 6 4 四、先化简再求值1a31、已知a=3,b=4，求+b)(a b)+ab(b-a)的值。2、化简:a+2+a2 4 a+2.a2 4 3、当 a=4、当 a=a+2 a2 4 取自己喜爱的a 的值计算。a+2+a 4 时，求a2 3ab+b2的值。a21 a 1 a2+2a+1 五、解答下列各题解方程：，3(x 1)=x 解方程组：1、2、2(x+1)y 3、已知直角三角-x+y=4 边长分别为a=2.3 .11，b=2,3+,
37、11，求斜边的长。【参考答案】同步学习检测(一)文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3
38、R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4
39、 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7
40、A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3
41、文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:C
42、K4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T
43、9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I313、选择题二、填空题7.、5-2,-2-5 8 5 2，X 2且x 10.mv 0 11.3,4512.30.20b
44、13._1 14.15.6 10 16.55解答题n n2-1 17.1 18.1-4.6 19.3 xy 20 1 X _-3-21.18 22.a 1,3 23.2009 a 24.原式=_(-m)._m _m(_ 丄)、-m=m 1；：；_m m26 6 27.(1)2 2.3-11(2)9 28.(98 30,5 34)米.同步学习检测（二）、选择题1、C 2、C 5、D 6、C 7、C 8、D 9、C 10、B 11、A 12 二、填空题1、1 x(n-210、一 5 11 1-a 12 a 三、计算与化简1、，3 2 4+4 6 2x 5 6、23 a四、先化简再求值1、3 2 2
45、 五、解答下列各题1、x=5+2 6 2 4、.7 6、x=2 3 2 y=6 23 3、.46,5 2 亠2-一6一文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4
46、ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A
47、5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文
48、档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK
49、4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9
50、Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7 HB9D3R8N7V4 ZN5N7A5I7I3文档编码:CK4L10T9Y10T7