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1、名师精编优秀教案21.3 二次根式的加减(3)第三课时教学内容含有二次根式的单项式与单项式相乘、相除;多项式与单项式相乘、相除;多项式与多项式相乘、相除;乘法公式的应用教学目标含有二次根式的式子进行乘除运算和含有二次根式的多项式乘法公式的应用复习整式运算知识并将该知识运用于含有二次根式的式子的乘除、乘方等运算重难点关键重点:二次根式的乘除、乘方等运算规律;难点关键:由整式运算知识迁移到含二次根式的运算教学过程一、复习引入学生活动:请同学们完成下列各题:1计算(1)(2x+y)zx (2)(2x2y+3xy2)xy 2计算(1)(2x+3y)(2x-3y)(2)(2x+1)2+(2x-1)2老师
2、点评:这些内容是对八年级上册整式运算的再现它主要有(1)?单项式单项式;(2)单项式多项式;(3)多项式单项式;(4)完全平方公式;(5)平方差公式的运用二、探索新知如果把上面的x、y、z 改写成二次根式呢?以上的运算规律是否仍成立呢??仍成立整式运算中的x、y、z 是一种字母,它的意义十分广泛,可以代表所有一切,?当然也可以代表二次根式,所以,整式中的运算规律也适用于二次根式例 1计算:(1)(6+8)3(2)(46-32)22分析:刚才已经分析,二次根式仍然满足整式的运算规律,?所以直接可用整式的运算规律解:(1)(6+8)3=63+83名师精编优秀教案 =18+24=32+26解:(46
3、-32)22=46 22-32 22 =23-32例 2计算(1)(5+6)(3-5)(2)(10+7)(10-7)分析:刚才已经分析,二次根式的多项式乘以多项式运算在乘法公式运算中仍然成立解:(1)(5+6)(3-5)=35-(5)2+18-65 =13-35(2)(10+7)(10-7)=(10)2-(7)2 =10-7=3 三、巩固练习课本 P20练习 1、2四、应用拓展例 3已知xba=2-xab,其中 a、b 是实数,且a+b 0,化简11xxxx+11xxxx,并求值分析:由于(1x+x)(1x-x)=1,因此对代数式的化简,可先将分母有理化,再通过解含有字母系数的一元一次方程得到
4、x 的值,代入化简得结果即可解:原式=2(1)(1)(1)xxxxxx+2(1)(1)(1)xxxxxx=2(1)(1)xxxx+2(1)(1)xxxx文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8
5、S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码
6、:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8
7、S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码
8、:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8
9、S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码
10、:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5名师精编优秀教案 =(x+1)+x-2(1)x x+x+2(1)x x =4x+2 xba=2-xabb(x-b)=2ab-a(x-a)bx-b2=2ab-ax+a2(a+b)x=a2+2ab+b2(a+b)
11、x=(a+b)2a+b0 x=a+b 原式=4x+2=4(a+b)+2 五、归纳小结本节课应掌握二次根式的乘、除、乘方等运算六、布置作业 1教材 P21习题 213 1、8、9 2选用课时作业设计作业设计一、选择题 1(24-315+2223)2的值是()A2033-330 B330-233 C230-233 D2033-30 2计算(x+1x)(x-1x)的值是()A2 B3 C4 D1 二、填空题 1(-12+32)2的计算结果(用最简根式表示)是_文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI
12、9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A
13、1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI
14、9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A
15、1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI
16、9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A
17、1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI
18、9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5名师精编优秀教案2(1-23)(1+23)-(23-1)2的计算结果(用最简二次根式表示)是 _ 3若 x=2-1,则 x2+2x+1=_ 4已知 a=3+22,b=3-22,则 a2b-ab2=_三、综合提高题 1化简5710141521 2当 x=121时,求2211xxxxxx+2211xxxxxx的值(结果用最简二次根式表示)课外知识 1同类二次根式:几个二次根式化成最简二次根式后,它们的被开方数相同,?这些二次根式就称为同类二次根式,就是本书中所讲的被开方数相同的二次根式练习:下列各组二
19、次根式中,是同类二次根式的是()A2x与2y B3489a b与5892a bCmn与n Dmn与mn 2互为有理化因式:?互为有理化因式是指两个二次根式的乘积可以运用平方差公式(a+b)(a-b)=a2-b2,同时它们的积是有理数,不含有二次根式:如x+1-22xx与x+1+22xx就是互为有理化因式;x与1x也是互为有理化因式练习:2+3的有理化因式是_;x-y的有理化因式是_ -1x-1x的有理化因式是_文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S
20、2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S
21、5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S
22、2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S
23、5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S
24、2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S
25、5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S
26、2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5名师精编优秀教案 3分母有理化是指把分母中的根号化去,通常在分子、?分母上同乘以一个二次根式,达到化去分母中的根号的目的练习:把下列各式的分母有理化(1)151;(2)112 3;(3)262;(4)3 34 23 34 2 4其它材料:如果n 是任意正整数,那么21nnn=n21nn理由:21nnn=332211nnnnnn=n21nn练习:填空223=_;338=_;4415=_答案:一、1A 2 D 二、11-32 2 43-24 32 4 42三、1原式5725273 53 7=572(57)3(57)=123=-(2-3)=3-2
27、2原式2222222(1)(1)(1)()xxxxxxxxx=222(1)()21xxxx=2(1)(1)1xxxx=2(2x+1)文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5
28、F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2
29、X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5
30、F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2
31、X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5
32、F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2
33、X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5名师精编优秀教案x=121=2+1 原式 2(22+3)=42+6.文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5
34、文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2
35、Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5
36、文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2
37、Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5
38、文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2
39、Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5
40、文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5名师精编优秀教案文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1
41、S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9
42、S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1
43、S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9
44、S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1
45、S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5文档编码:CT2N8A1S2X8 HW2Y1I8S8Q7 ZI9S5F6Y2F5