2022年平方差公式与完全平方公式提高训练 .pdf

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2022年平方差公式与完全平方公式提高训练 .pdf

名师推荐精心整理学习必备教学过程提高训练一、选择1.若(xa)(xb)x2kxab，则 k 的值为()AabBabCabDba2.计算(2x3y)(4x26xy9y2)的正确结果是()A(2x3y)2B(2x3y)2C8x327y3D8x327y33.(x2px3)(xq)的乘积中不含 x2项，则()ApqBpqCpqD无法确定4.若 0 x1，那么代数式(1x)(2x)的值是()A一定为正B一定为负C一定为非负数D不能确定5.计算(a22)(a42a24)(a22)(a42a24)的正确结果是()A2(a22)B2(a22)C2a3D2a66.方程(x4)(x5)x220的解是()Ax0 Bx4 Cx5 Dx40 7.若 2x25x1a(x1)2b(x1)c，那么 a，b，c应为()Aa2，b2，c1 Ba2，b2，c1 Ca2，b1，c2 Da2，b1，c2 1.(x33x24x1)(x22x3)的展开式中，x4的系数是 _ 2.若(xa)(x2)x25xb，则 a_，b_3.若 a2a12，则(5a)(6a)_ 4.当 k_时，多项式 x1 与 2kx的乘积不含一次项5.若(x2ax8)(x23xb)的乘积中不含 x2和 x3项，则 a_，b_1、若(x2axb)(2x23x1)的积中，x3的系数为 5，x2的系数为 6，求 a，b名师推荐精心整理学习必备二、计算（1）（21ab232c）2；（2）（x3y2）（x3y2）；（3）（a 2b 3c 1）（a 2b 3c 1）；（4）（s 2t）（s 2t）（s 2t）2；（4）（5）（t3）2（t3）2（t 29）2例 1、完全平方式1、若kxx22是完全平方式，则k=2、.若 x27xy+M 是一个完全平方式，那么M 是3、如果 4a2Nab81b2是一个完全平方式，则N=4、如果224925ykxyx是一个完全平方式，那么k=例 2、配方思想1、若 a2+b22a+2b+2=0,则 a2004+b2005=_.2、已知0136422yxyx，求yx=_.3、已知222450 xyxy，求21(1)2xxy=_.4、已知 x、y 满足 x2十 y2十452x 十 y，求代数式yxxy=_.5已知014642222zyxzyx，则zyx=文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10名师推荐精心整理学习必备例 3、完全平方公式的变形技巧1、已知2()16,4,abab求223ab与2()ab的值。2、已知 2ab5，ab23，求 4a2b21 的值3、已知16xx，求221xx，441xx4、0132xx，求（1）221xx（2）441xx提高练习A 组：1已知2()16,4,abab求223ab与2()ab的值。2已知()5,3abab求2()ab与223()ab的值。文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10名师推荐精心整理学习必备3已知6,4abab求ab与22ab的值。4已知224,4abab求22a b与2()ab的值。B 组：5已知6,4abab，求22223a ba bab的值。6 已知222450 xyxy，求21(1)2xxy的值。7已知16xx，求221xx的值。8试说明不论x,y 取何值，代数式226415xyxy的值总是正数。文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 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HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10文档编码:CH9J8Q2B1V1 HM5E10S6I7A4 ZZ1H1J4G1Q10

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