人教版八年级数学上册乘法公式综合练习题精选75.docx

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人教版八年级数学上册乘法公式综合练习题精选75.docx

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人教版八年级数学上册乘法公式综合练习题精选75.docx

人教版八年级数学上册乘法公式综合练习题精选75

(s+7)(s-7)702×698

(3t+3)(3t-3)(-a+2b)(-a-2b)

(2x+y)(2x-y)(6+b)(6-b)

(x+y)(x-y)(7x+9y)(-7x+9y)

(x+5)(x-5)+(x-3)(x-9)(10s+4)(10s-4)+(3s+7)(3s+7)

(s+8)(s-8)205×195

(x+8)(x-8)(a+b)(a-b)

(5x+5y)(5x-5y)(6+2b)(6-2b)

(-2x+2y)(-2x-2y)(6+y)(-6+y)

(t+10)(t-10)+(t+9)(t-7)(s+3)(s-3)+(3s+8)(2s+2)

(t+2)(t-2)802×798

(c+4)(c-4)(-7a+b)(-7a-b)

(8x+y)(8x-y)(3+b)(3-b)

(-6x+y)(-6x-y)(7+5y)(-7+5y)

(y+6)(y-6)+(y-1)(y+8)(4t+9)(4t-9)+(4t-8)(3t+3)

(c+3)(c-3)405×395

(t+1)(t-1)(-a+b)(-a-b)

(x+4y)(x-4y)(7a+b)(7a-b)

(-x+y)(-x-y)(4+5y)(-4+5y)

(s+4)(s-4)+(s+1)(s+7)(2x+4)(2x-4)+(3x-9)(4x-7)

(y+6)(y-6)503×497

(x+2)(x-2)(9a+6b)(9a-6b)

(x+3y)(x-3y)(9a+b)(9a-b)

(-4x+6y)(-4x-6y)(9+y)(-9+y)

(y+2)(y-2)-(y+8)(y+4)(a+9)(a-9)-(3a+5)(4a-3)

(a+9)(a-9)903×897

(7x+10)(7x-10)(8a+7b)(8a-7b)

(6x+y)(6x-y)(a+3b)(a-3b)

(-x+y)(-x-y)(5+5y)(-5+5y)

(t+10)(t-10)-(t+9)(t-9)(a+3)(a-3)+(2a-10)(3a+7)

(x+6)(x-6)44×36

(a+8)(a-8)(-9a+4)(-9a-4)

(6x+y)(6x-y)(8+b)(8-b)

(-x+3y)(-x-3y)(2+y)(-2+y)

(c+4)(c-4)-(c+7)(c-3)(b+4)(b-4)-(2b+7)(4b-9)

(s+6)(s-6)32×28

(s+7)(s-7)(a+b)(a-b)

(9x+y)(9x-y)(1+5b)(1-5b)

(9x+4y)(9x-4y)(7+y)(-7+y)

(y+4)(y-4)+(y+8)(y-8)(7c+3)(7c-3)+(2c+7)(3c+1)

(y+5)(y-5)401×399

(a+5)(a-5)(-a+6)(-a-6)

(x+2y)(x-2y)(a+2b)(a-2b)

(5x+y)(5x-y)(9+y)(-9+y)

(t+6)(t-6)+(t+1)(t+7)(4t+10)(4t-10)-(4t-7)(2t+10)

(a+5)(a-5)903×897

(t+3)(t-3)(-5a+1)(-5a-1)

(x+3y)(x-3y)(a+b)(a-b)

(-8x+y)(-8x-y)(10+5y)(-10+5y)

(s+3)(s-3)+(s-6)(s-9)(c+1)(c-1)+(2c+7)(4c-3)

(y+6)(y-6)504×496

(8s+6)(8s-6)(7a+6)(7a-6)

(x+y)(x-y)(6+b)(6-b)

(-5x+6y)(-5x-6y)(x+y)(-x+y)

(y+8)(y-8)+(y-8)(y+5)(y+4)(y-4)+(4y-7)(4y+6)

(b+3)(b-3)92×88

(3t+10)(3t-10)(a+7)(a-7)

(x+3y)(x-3y)(2a+9b)(2a-9b)

(-x+4y)(-x-4y)(4+7y)(-4+7y)

(t+3)(t-3)+(t-6)(t+3)(3t+8)(3t-8)+(3t+10)(2t+5)

(b+7)(b-7)305×295

(3a+10)(3a-10)(-a+8)(-a-8)

(x+6y)(x-6y)(3a+b)(3a-b)

(-9x+2y)(-9x-2y)(7x+y)(-7x+y)

(x+10)(x-10)+(x+6)(x+9)(y+4)(y-4)+(4y-6)(2y+10)

(s+3)(s-3)604×596

(5y+7)(5y-7)(-7a+b)(-7a-b)

(x+2y)(x-2y)(10+7b)(10-7b)

(-x+y)(-x-y)(5+y)(-5+y)

(y+9)(y-9)-(y+3)(y-5)(b+10)(b-10)-(2b+6)(2b-9)

(x+4)(x-4)202×198

(y+4)(y-4)(-a+2)(-a-2)

(6x+y)(6x-y)(a+4b)(a-4b)

(x+5y)(x-5y)(2x+9y)(-2x+9y)

(a+2)(a-2)+(a+8)(a+1)(c+4)(c-4)-(3c+6)(4c+5)

(t+7)(t-7)401×399

(c+7)(c-7)(a+2b)(a-2b)

(x+y)(x-y)(8+b)(8-b)

(-x+6y)(-x-6y)(3+2y)(-3+2y)

(a+10)(a-10)+(a-3)(a-4)(6t+10)(6t-10)-(3t+1)(2t+5)

(a+3)(a-3)402×398

(4a+8)(4a-8)(2a+2)(2a-2)

(x+y)(x-y)(2+b)(2-b)

(2x+y)(2x-y)(1+8y)(-1+8y)

(b+4)(b-4)-(b+5)(b-2)(c+4)(c-4)-(3c+7)(3c+10)

(x+5)(x-5)65×55

(s+3)(s-3)(5a+1)(5a-1)

(2x+y)(2x-y)(7+3b)(7-3b)

(x+y)(x-y)(x+y)(-x+y)

(s+4)(s-4)+(s-9)(s+2)(x+10)(x-10)+(2x-9)(2x+3)

(t+2)(t-2)94×86

(t+10)(t-10)(5a+9)(5a-9)

(9x+6y)(9x-6y)(4a+b)(4a-b)

(9x+y)(9x-y)(2x+6y)(-2x+6y)

(b+8)(b-8)-(b-7)(b-5)(5c+1)(5c-1)-(4c+9)(3c+8)

(x+1)(x-1)95×85

(y+5)(y-5)(a+8)(a-8)

(x+y)(x-y)(9+8b)(9-8b)

(3x+4y)(3x-4y)(6x+y)(-6x+y)

(b+4)(b-4)+(b+4)(b+9)(6b+7)(6b-7)-(3b+4)(3b-3)

(c+10)(c-10)64×56

(4b+8)(4b-8)(-a+9)(-a-9)

(x+2y)(x-2y)(8a+b)(8a-b)

(x+y)(x-y)(7+3y)(-7+3y)

(y+2)(y-2)-(y-4)(y-3)(t+5)(t-5)-(4t+10)(4t+1)

(a+10)(a-10)103×97

(x+1)(x-1)(4a+8)(4a-8)

(x+7y)(x-7y)(a+b)(a-b)

(x+y)(x-y)(3+5y)(-3+5y)

(x+5)(x-5)-(x-8)(x-3)(b+2)(b-2)+(3b+5)(2b+5)

(t+4)(t-4)42×38

(b+7)(b-7)(2a+2b)(2a-2b)

(4x+y)(4x-y)(3+b)(3-b)

(7x+2y)(7x-2y)(8x+7y)(-8x+7y)

(a+3)(a-3)+(a-3)(a-6)(10x+3)(10x-3)-(3x+4)(2x+1)

(s+6)(s-6)84×76

(x+10)(x-10)(9a+3b)(9a-3b)

(2x+8y)(2x-8y)(6a+4b)(6a-4b)

(-8x+7y)(-8x-7y)(10+y)(-10+y)

(c+8)(c-8)-(c-2)(c-6)(x+4)(x-4)-(4x+3)(3x-10)

(x+5)(x-5)91×89

(3a+4)(3a-4)(7a+2)(7a-2)

(x+7y)(x-7y)(3+4b)(3-4b)

(9x+3y)(9x-3y)(x+y)(-x+y)

(a+7)(a-7)+(a+5)(a-8)(9c+8)(9c-8)-(3c-9)(4c+9)

(x+10)(x-10)305×295

(s+7)(s-7)(a+b)(a-b)

(7x+y)(7x-y)(9+b)(9-b)

(x+y)(x-y)(6x+y)(-6x+y)

(a+9)(a-9)+(a+7)(a-9)(4x+3)(4x-3)-(2x+3)(4x-8)

(s+10)(s-10)703×697

(2x+5)(2x-5)(2a+b)(2a-b)

(8x+6y)(8x-6y)(a+b)(a-b)

(x+2y)(x-2y)(x+2y)(-x+2y)

(a+6)(a-6)-(a-1)(a+6)(x+8)(x-8)-(3x-10)(3x+6)

(b+10)(b-10)94×86

(5y+1)(5y-1)(-3a+b)(-3a-b)

(2x+6y)(2x-6y)(9a+b)(9a-b)

(-x+y)(-x-y)(x+y)(-x+y)

(a+6)(a-6)-(a+8)(a+5)(x+8)(x-8)+(2x+7)(4x-6)

(y+9)(y-9)902×898

(9b+9)(9b-9)(-6a+2)(-6a-2)

(x+7y)(x-7y)(5+b)(5-b)

(x+6y)(x-6y)(x+y)(-x+y)

(a+6)(a-6)+(a+8)(a+9)(3t+10)(3t-10)-(2t-7)(4t-7)

(t+8)(t-8)33×27

(9y+6)(9y-6)(-a+b)(-a-b)

(x+7y)(x-7y)(4a+b)(4a-b)

(x+y)(x-y)(3x+y)(-3x+y)

(s+6)(s-6)-(s-6)(s-8)(x+7)(x-7)-(3x-10)(2x-3)

(a+7)(a-7)804×796

(x+4)(x-4)(9a+8)(9a-8)

(3x+4y)(3x-4y)(1+8b)(1-8b)

(x+3y)(x-3y)(x+y)(-x+y)

(t+4)(t-4)+(t-5)(t+3)(s+6)(s-6)+(3s-8)(4s+5)

(x+7)(x-7)71×69

(x+6)(x-6)(4a+5b)(4a-5b)

(2x+y)(2x-y)(5+b)(5-b)

(-x+y)(-x-y)(2+y)(-2+y)

(b+1)(b-1)-(b+1)(b-7)(y+9)(y-9)-(3y-2)(2y+5)

(a+4)(a-4)602×598

(x+3)(x-3)(a+8)(a-8)

(2x+3y)(2x-3y)(8a+7b)(8a-7b)

(-x+8y)(-x-8y)(9x+y)(-9x+y)

(a+1)(a-1)+(a-8)(a+2)(6s+3)(6s-3)-(3s+2)(3s-7)

(b+8)(b-8)102×98

(7t+10)(7t-10)(8a+b)(8a-b)

(x+y)(x-y)(1+6b)(1-6b)

(2x+y)(2x-y)(3+6y)(-3+6y)

(s+2)(s-2)-(s+3)(s-9)(x+2)(x-2)+(4x+5)(4x-1)

(s+6)(s-6)31×29

(8t+1)(8t-1)(a+b)(a-b)

(x+y)(x-y)(4+b)(4-b)

(x+5y)(x-5y)(3+y)(-3+y)

(t+8)(t-8)-(t-6)(t+1)(y+10)(y-10)-(3y-10)(4y-2)

(c+9)(c-9)31×29

(y+4)(y-4)(-9a+b)(-9a-b)

(5x+8y)(5x-8y)(10+2b)(10-2b)

(9x+7y)(9x-7y)(5+y)(-5+y)

(c+3)(c-3)-(c+5)(c+9)(10a+4)(10a-4)+(4a-5)(3a+2)

(b+10)(b-10)202×198

(s+3)(s-3)(-a+8b)(-a-8b)

(7x+9y)(7x-9y)(5a+8b)(5a-8b)

(-9x+5y)(-9x-5y)(4+4y)(-4+4y)

(x+7)(x-7)-(x+1)(x+4)(8s+5)(8s-5)-(4s+9)(4s-2)

(c+1)(c-1)503×497

(b+3)(b-3)(a+6)(a-6)

(8x+y)(8x-y)(a+b)(a-b)

(-4x+6y)(-4x-6y)(x+8y)(-x+8y)

(s+10)(s-10)-(s+6)(s-3)(9b+6)(9b-6)-(2b-9)(3b-1)

(a+7)(a-7)71×69

(3s+1)(3s-1)(a+6)(a-6)

(5x+8y)(5x-8y)(6a+9b)(6a-9b)

(-3x+9y)(-3x-9y)(9x+y)(-9x+y)

(a+1)(a-1)+(a-5)(a-1)(x+5)(x-5)-(4x-1)(3x-2)

(b+9)(b-9)63×57

(x+7)(x-7)(5a+1)(5a-1)

(x+3y)(x-3y)(4+5b)(4-5b)

(-x+y)(-x-y)(2+y)(-2+y)

(y+10)(y-10)-(y-8)(y-2)(s+9)(s-9)-(4s+8)(3s+7)

(t+7)(t-7)84×76

(9c+4)(9c-4)(-a+4)(-a-4)

(x+7y)(x-7y)(4+5b)(4-5b)

(-x+y)(-x-y)(8x+7y)(-8x+7y)

(a+2)(a-2)+(a-4)(a+7)(b+10)(b-10)-(3b-1)(2b-9)

(s+6)(s-6)53×47

(y+3)(y-3)(6a+b)(6a-b)

(6x+y)(6x-y)(9+7b)(9-7b)

(-x+2y)(-x-2y)(3+7y)(-3+7y)

(c+3)(c-3)+(c+8)(c-4)(9x+7)(9x-7)-(4x-5)(2x+1)

(t+5)(t-5)45×35

(6x+10)(6x-10)(-2a+1)(-2a-1)

(x+8y)(x-8y)(a+b)(a-b)

(x+y)(x-y)(5+5y)(-5+5y)

(y+8)(y-8)+(y+5)(y-7)(s+1)(s-1)-(2s+3)(4s+6)

(b+4)(b-4)804×796

(x+6)(x-6)(-a+8)(-a-8)

(x+8y)(x-8y)(3+b)(3-b)

(-x+6y)(-x-6y)(x+y)(-x+y)

(x+8)(x-8)+(x-3)(x+1)(5c+4)(5c-4)-(3c+2)(2c-2)

(b+6)(b-6)74×66

(y+10)(y-10)(a+b)(a-b)

(7x+6y)(7x-6y)(9a+6b)(9a-6b)

(-x+6y)(-x-6y)(9+y)(-9+y)

(c+3)(c-3)+(c+9)(c+2)(3b+7)(3b-7)+(3b-5)(2b+8)

(t+6)(t-6)95×85

(a+10)(a-10)(-a+7b)(-a-7b)

(2x+y)(2x-y)(3a+7b)(3a-7b)

(x+y)(x-y)(x+y)(-x+y)

(y+1)(y-1)-(y+5)(y-5)(y+2)(y-2)-(2y+2)(4y+6)

(t+7)(t-7)801×799

(3b+5)(3b-5)(-3a+b)(-3a-b)

(2x+9y)(2x-9y)(10+b)(10-b)

(-x+y)(-x-y)(7+5y)(-7+5y)

(c+6)(c-6)+(c+4)(c+8)(t+1)(t-1)+(3t+9)(2t-1)

(a+4)(a-4)33×27

(3x+6)(3x-6)(-a+6b)(-a-6b)

(x+y)(x-y)(7a+b)(7a-b)

(9x+y)(9x-y)(4x+3y)(-4x+3y)

(y+2)(y-2)-(y+5)(y-8)(s+8)(s-8)-(2s-6)(3s-8)

(c+2)(c-2)803×797

(b+7)(b-7)(-6a+9)(-6a-9)

(x+5y)(x-5y)(5a+6b)(5a-6b)

(5x+y)(5x-y)(x+7y)(-x+7y)

(c+1)(c-1)-(c+5)(c+6)(a+1)(a-1)+(3a-1)(2a-6)

(x+1)(x-1)62×58

(4c+5)(4c-5)(-7a+6)(-7a-6)

(4x+y)(4x-y)(4a+3b)(4a-3b)

(x+5y)(x-5y)(5+6y)(-5+6y)

(y+2)(y-2)-(y-9)(y-1)(6c+10)(6c-10)+(3c-2)(2c+8)

(c+8)(c-8)502×498

(b+5)(b-5)(-a+6)(-a-6)

(x+y)(x-y)(2a+b)(2a-b)

(-x+7y)(-x-7y)(4+5y)(-4+5y)

(y+1)(y-1)+(y-4)(y+7)(c+9)(c-9)-(4c-6)(3c+5)

(c+3)(c-3)704×696

(c+10)(c-10)(-2a+4)(-2a-4)

(8x+4y)(8x-4y)(6+7b)(6-7b)

(-7x+3y)(-7x-3y)(4+4y)(-4+4y)

(b+10)(b-10)+(b-2)(b-4)(5a+1)(5a-1)+(4a-2)(3a-10)

(s+4)(s-4)52×48

(s+9)(s-9)(6a+b)(6a-b)

(x+y)(x-y)(a+b)(a-b)

(-x+y)(-x-y)(6x+y)(-6x+y)

(b+3)(b-3)-(b-9)(b-1)(6a+2)(6a-2)-(2a-10)(2a+1)

(t+6)(t-6)203×197

(y+5)(y-5)(-a+b)(-a-b)

(9x+6y)(9x-6y)(6a+9b)(6a-9b)

(x+y)(x-y)(8+y)(-8+y)

(x+3)(x-3)-(x+9)(x+4)(a+10)(a-10)+(2a+10)(4a+3)

(s+7)(s-7)43×37

(6y+7)(6y-7)(-a+5b)(-a-5b)

(2x+8y)(2x-8y)(5a+b)(5a-b)

(-3x+y)(-3x-y)(x+9y)(-x+9y)

(x+4)(x-4)+(x-7)(x+4)(2b+10)(2b-10)+(3b+9)(2b-10)

(s+2)(s-2)403×397

(y+6)(y-6)(-a+7b)(-a-7b)

(x+y)(x-y)(a+5b)(a-5b)

(x+8y)(x-8y)(x+y)(-x+y)

(c+8)(c-8)+(c-6)(c-9)(x+5)(x-5)+(2x-6)(3x-6)

(s+8)(s-8)803×797

(4s+5)(4s-5)(a+9b)(a-9b)

(8x+y)(8x-y)(8a+b)(8a-b)

(-2x+y)(-2x-y)(3x+6y)(-3x+6y)

(t+4)(t-4)+(t+4)(t+4)(x+8)(x-8)+(4x-7)(2x

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