人教版初二数学上册乘法公式综合练习题精选20.docx
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人教版初二数学上册乘法公式综合练习题精选20.docx
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人教版初二数学上册乘法公式综合练习题精选20
(a+b-c)2(y+7)(y-7)
(3x+y+z)(3x-y-z)(x+y)(x-y)
(-x+4y)(-x-4y)(y+7)(y-7)+(y-3)(y-9)
(x-10)243×37
(-4x-8)2(-6a+b)(-6a-b)
(x+4y)2(a+6b)(a-6b)
1
(y+—)2(8x+y)(-8x+y)
7
33
(—x+—y)2(b+5)(b-5)-(4b-3)(3b-5)
42
(3x+3y-9)(3x-3y+9)(x+3)(x-3)
(2a-3b-c)2(c+6)(c-6)
(3x+2y+z)(3x-2y-z)(7x+2y)(7x-2y)
(-6x+2y)(-6x-2y)(c+2)(c-2)+(c+7)(c+6)
(s+1)254×46
(-2x-9)2(a+5b)(a-5b)
(x-y)2(a+b)(a-b)
1
(y-—)2(10+5y)(-10+5y)
7
11
(—x-—)2(b+3)(b-3)-(4b+3)(3b-7)
24
(x+y-5)(x-y+5)(c+6)(c-6)
(2a+b-c)2(b+1)(b-1)
(x+3y+z)(x-3y-z)(2x+4y)(2x-4y)
(x+y)(x-y)(c+5)(c-5)+(c-8)(c+3)
(y-1)255×45
(7c+10)2(8a+b)(8a-b)
(-x+3y)2(3a+9b)(3a-9b)
1
(y+—)2(5+8y)(-5+8y)
4
35
(—x-—y)2(5b+5)(5b-5)-(2b+7)(2b-1)
24
(x+y-4)(x-y+4)(y+7)(y-7)
(a-b+c)2(a+4)(a-4)
(3x+y+1)(3x-y-1)(x+5y)(x-5y)
(-3x+y)(-3x-y)(a+4)(a-4)-(a+6)(a+9)
(s-8)2402×398
(-s-10)2(-5a+b)(-5a-b)
(-6x+y)2(a+b)(a-b)
1
(y-—)2(x+y)(-x+y)
4
11
(—x-—y)2(9t+6)(9t-6)+(2t+6)(3t+10)
43
(x+2y-5)(x-2y+5)(x+5)(x-5)
(a+3b-c)2(2b+5)(2b-5)
(x+3y+z)(x-3y-z)(x+5y)(x-5y)
(6x+y)(6x-y)(y+7)(y-7)+(y-9)(y-9)
(y-9)274×66
(-a-1)2(a+5)(a-5)
(x-y)2(6+3b)(6-3b)
1
(y-—)2(8x+5y)(-8x+5y)
5
11
(—x+—y)2(y+5)(y-5)-(2y+3)(3y-4)
25
(3x+y-1)(3x-y+1)(t+10)(t-10)
(a-2b+3)2(b+1)(b-1)
(x+2y+2)(x-2y-2)(x+2y)(x-2y)
(8x+5y)(8x-5y)(s+3)(s-3)+(s-2)(s+3)
(y+2)283×77
(-b-4)2(7a+8)(7a-8)
(-x+y)2(2+b)(2-b)
1
(y+—)2(5x+6y)(-5x+6y)
3
31
(—x+—y)2(y+9)(y-9)+(4y-4)(2y+10)
22
(x+2y-6)(x-2y+6)(y+9)(y-9)
(a-3b+5)2(a+9)(a-9)
(x+y+z)(x-y-z)(4x+y)(4x-y)
(-7x+8y)(-7x-8y)(b+4)(b-4)+(b-4)(b+5)
(t-2)2101×99
(9c-2)2(a+4)(a-4)
(-7x-y)2(4+5b)(4-5b)
1
(y-—)2(8+y)(-8+y)
2
14
(—x+—)2(y+10)(y-10)+(3y-8)(4y-3)
43
(x+y-2)(x-y+2)(a+9)(a-9)
(a+3b-c)2(c+5)(c-5)
(x+y+2)(x-y-2)(x+y)(x-y)
(7x+3y)(7x-3y)(s+9)(s-9)+(s+7)(s-8)
(a-6)2404×396
(-3s-7)2(a+2)(a-2)
(-x-y)2(3a+b)(3a-b)
1
(y+—)2(3x+8y)(-3x+8y)
8
15
(—x-—)2(2t+3)(2t-3)-(4t-10)(3t+4)
44
(4x+y-4)(4x-y+4)(y+2)(y-2)
(a-b-6)2(c+9)(c-9)
(x+3y+1)(x-3y-1)(3x+3y)(3x-3y)
(-x+y)(-x-y)(c+9)(c-9)-(c-5)(c+8)
(t-7)253×47
(4s-8)2(-a+6b)(-a-6b)
(x+3y)2(a+5b)(a-5b)
1
(y+—)2(x+y)(-x+y)
4
42
(—x+—y)2(10c+10)(10c-10)-(2c+3)(4c+9)
53
(x+y-8)(x-y+8)(c+4)(c-4)
(a+b+c)2(s+10)(s-10)
(x+2y+1)(x-2y-1)(x+7y)(x-7y)
(x+y)(x-y)(t+1)(t-1)+(t-4)(t-6)
(a-1)282×78
(5s+7)2(-a+b)(-a-b)
(3x-2y)2(5a+b)(5a-b)
1
(y+—)2(4x+6y)(-4x+6y)
2
41
(—x+—)2(c+5)(c-5)-(4c+3)(2c+3)
52
(x+y-3)(x-y+3)(s+10)(s-10)
(3a-2b+c)2(9y+9)(9y-9)
(x+y+z)(x-y-z)(x+y)(x-y)
(-x+2y)(-x-2y)(b+10)(b-10)-(b+2)(b+4)
(b+3)232×28
(6t-1)2(7a+4)(7a-4)
(x+y)2(6+b)(6-b)
1
(y-—)2(x+2y)(-x+2y)
9
31
(—x-—)2(s+2)(s-2)+(4s-2)(4s-4)
24
(x+2y-9)(x-2y+9)(s+4)(s-4)
(3a+3b-c)2(3x+3)(3x-3)
(2x+y+z)(2x-y-z)(x+y)(x-y)
(-x+5y)(-x-5y)(b+5)(b-5)-(b+6)(b+9)
(y+8)274×66
(-x-9)2(2a+2)(2a-2)
(8x-y)2(7+3b)(7-3b)
1
(y+—)2(8x+y)(-8x+y)
4
51
(—x-—y)2(c+8)(c-8)+(3c+9)(3c+8)
42
(6x+3y-3)(6x-3y+3)(t+2)(t-2)
(a+2b-1)2(s+2)(s-2)
(x+3y+z)(x-3y-z)(x+4y)(x-4y)
(-4x+5y)(-4x-5y)(s+5)(s-5)+(s-9)(s-9)
(c+3)244×36
(4x-6)2(-7a+6b)(-7a-6b)
(x-y)2(6+4b)(6-4b)
1
(y+—)2(9x+y)(-9x+y)
3
11
(—x+—y)2(t+4)(t-4)+(3t-6)(4t+4)
33
(x+y-2)(x-y+2)(s+9)(s-9)
(3a-b-c)2(s+4)(s-4)
(x+y+1)(x-y-1)(x+y)(x-y)
(7x+y)(7x-y)(c+9)(c-9)+(c-5)(c-4)
(c+9)2304×296
(x-10)2(-a+8)(-a-8)
(-2x-y)2(1+4b)(1-4b)
1
(y-—)2(7x+8y)(-7x+8y)
3
11
(—x+—)2(x+6)(x-6)-(2x-1)(4x-6)
34
(x+y-7)(x-y+7)(s+10)(s-10)
(a+b+c)2(b+3)(b-3)
(x+2y+z)(x-2y-z)(9x+3y)(9x-3y)
(-x+y)(-x-y)(y+2)(y-2)-(y-8)(y-8)
(y+10)295×85
(y+3)2(-6a+5b)(-6a-5b)
(-5x+2y)2(6a+3b)(6a-3b)
1
(y+—)2(2+6y)(-2+6y)
9
53
(—x+—)2(c+2)(c-2)+(3c+5)(4c+1)
44
(2x+y-2)(2x-y+2)(x+10)(x-10)
(3a-b+c)2(c+1)(c-1)
(3x+2y+2)(3x-2y-2)(x+7y)(x-7y)
(3x+5y)(3x-5y)(y+9)(y-9)-(y-4)(y+7)
(c-2)2503×497
(-8c+5)2(2a+3b)(2a-3b)
(-2x-3y)2(a+b)(a-b)
1
(y+—)2(4x+7y)(-4x+7y)
4
12
(—x-—y)2(c+3)(c-3)-(2c-8)(3c-2)
23
(4x+3y-1)(4x-3y+1)(s+6)(s-6)
(2a+b+c)2(3s+10)(3s-10)
(x+y+1)(x-y-1)(x+5y)(x-5y)
(2x+3y)(2x-3y)(y+6)(y-6)-(y-2)(y+5)
(s+5)252×48
(-c-5)2(8a+4b)(8a-4b)
(6x+2y)2(3+9b)(3-9b)
1
(y-—)2(x+9y)(-x+9y)
6
42
(—x+—y)2(x+4)(x-4)-(3x+1)(3x+3)
53
(5x+y-8)(5x-y+8)(a+10)(a-10)
(3a+3b+c)2(8b+3)(8b-3)
(x+y+3)(x-y-3)(6x+y)(6x-y)
(-6x+y)(-6x-y)(x+7)(x-7)+(x+3)(x-8)
(s-4)291×89
(y-5)2(7a+3)(7a-3)
(-3x+2y)2(4a+b)(4a-b)
1
(y+—)2(2+y)(-2+y)
3
16
(—x+—y)2(a+2)(a-2)+(3a-10)(2a-4)
25
(x+y-7)(x-y+7)(y+3)(y-3)
(a-3b-c)2(t+7)(t-7)
(x+y+4)(x-y-4)(4x+6y)(4x-6y)
(-x+3y)(-x-3y)(y+5)(y-5)-(y+6)(y+2)
(b-3)2605×595
(b-10)2(6a+4b)(6a-4b)
(-3x+y)2(4+b)(4-b)
1
(y-—)2(x+y)(-x+y)
2
34
(—x-—y)2(9a+8)(9a-8)+(4a+1)(2a+2)
45
(4x+2y-8)(4x-2y+8)(a+8)(a-8)
(a-3b+6)2(x+8)(x-8)
(x+2y+z)(x-2y-z)(x+y)(x-y)
(-9x+4y)(-9x-4y)(c+5)(c-5)+(c+1)(c-1)
(a+10)2602×598
(-b-4)2(-a+2)(-a-2)
(9x-y)2(a+b)(a-b)
1
(y+—)2(8x+y)(-8x+y)
5
11
(—x-—)2(6a+2)(6a-2)-(3a-7)(4a-7)
54
(4x+y-6)(4x-y+6)(x+9)(x-9)
(a-b+c)2(8c+5)(8c-5)
(4x+3y+z)(4x-3y-z)(x+y)(x-y)
(-x+y)(-x-y)(b+4)(b-4)-(b+6)(b+6)
(x-10)2802×798
(-8y-2)2(-4a+5b)(-4a-5b)
(-x-y)2(a+b)(a-b)
1
(y+—)2(x+6y)(-x+6y)
9
44
(—x-—y)2(b+4)(b-4)-(2b+3)(4b-2)
53
(4x+3y-4)(4x-3y+4)(y+4)(y-4)
(a+b+c)2(t+6)(t-6)
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