人教版八年级数学上册乘法公式综合练习题精选155.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155.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155.docx

人教版八年级数学上册乘法公式综合练习题精选155

(t+9)(t-9)103×97

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

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

(-6x+3y)(-6x-3y)(8+5y)(-8+5y)

(b+1)(b-1)+(b-7)(b-9)(4y+4)(4y-4)-(3y+6)(3y+10)

(b+5)(b-5)402×398

(x+1)(x-1)(-a+b)(-a-b)

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

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

(b+8)(b-8)-(b+6)(b+1)(3x+2)(3x-2)-(4x+10)(3x-7)

(c+4)(c-4)204×196

(b+9)(b-9)(-2a+8b)(-2a-8b)

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

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

(a+3)(a-3)+(a+7)(a+2)(x+3)(x-3)-(2x-10)(4x-6)

(s+1)(s-1)32×28

(4a+8)(4a-8)(a+3)(a-3)

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

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

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

(b+2)(b-2)95×85

(2x+9)(2x-9)(9a+1)(9a-1)

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

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

(c+10)(c-10)+(c-9)(c-6)(s+1)(s-1)+(4s+2)(2s-9)

(t+6)(t-6)604×596

(c+4)(c-4)(6a+4b)(6a-4b)

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

(9x+y)(9x-y)(3x+5y)(-3x+5y)

(b+1)(b-1)+(b-1)(b+1)(4t+8)(4t-8)+(2t+5)(4t+9)

(c+7)(c-7)62×58

(c+3)(c-3)(-4a+b)(-4a-b)

(8x+2y)(8x-2y)(7+4b)(7-4b)

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

(s+3)(s-3)-(s+7)(s-8)(5b+4)(5b-4)-(4b+10)(4b-2)

(x+9)(x-9)92×88

(b+10)(b-10)(-5a+b)(-5a-b)

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

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

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

(b+8)(b-8)602×598

(3s+4)(3s-4)(-a+5b)(-a-5b)

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

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

(b+9)(b-9)+(b-4)(b+9)(4s+5)(4s-5)-(4s-8)(2s-5)

(t+8)(t-8)203×197

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

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

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

(c+10)(c-10)-(c+9)(c+9)(x+2)(x-2)-(2x+5)(2x+3)

(y+2)(y-2)601×599

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

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

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

(x+4)(x-4)+(x+4)(x+8)(10x+5)(10x-5)-(2x-4)(4x+9)

(a+6)(a-6)405×395

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

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

(3x+4y)(3x-4y)(8+5y)(-8+5y)

(a+4)(a-4)+(a-7)(a-6)(6y+9)(6y-9)-(3y+10)(3y-7)

(c+9)(c-9)405×395

(3b+10)(3b-10)(a+4)(a-4)

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

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

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

(x+5)(x-5)101×99

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

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

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

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

(c+1)(c-1)101×99

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

(9x+8y)(9x-8y)(10+6b)(10-6b)

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

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

(c+6)(c-6)603×597

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

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

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

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

(x+10)(x-10)74×66

(t+5)(t-5)(-a+7)(-a-7)

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

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

(y+7)(y-7)-(y-7)(y+1)(x+1)(x-1)+(3x+5)(3x+9)

(a+8)(a-8)203×197

(6t+2)(6t-2)(a+7)(a-7)

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

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

(y+5)(y-5)-(y-5)(y-8)(s+1)(s-1)-(4s+10)(3s+6)

(x+10)(x-10)101×99

(c+4)(c-4)(-a+1)(-a-1)

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

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

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

(a+6)(a-6)65×55

(4t+4)(4t-4)(a+4b)(a-4b)

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

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

(a+3)(a-3)+(a-4)(a-8)(s+6)(s-6)+(4s-9)(3s+1)

(s+6)(s-6)505×495

(t+1)(t-1)(2a+7)(2a-7)

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

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

(y+3)(y-3)-(y-5)(y+5)(y+8)(y-8)-(4y+7)(3y+1)

(b+1)(b-1)101×99

(c+2)(c-2)(3a+6b)(3a-6b)

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

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

(b+2)(b-2)-(b-5)(b-5)(t+8)(t-8)+(4t-5)(3t+1)

(b+3)(b-3)103×97

(s+6)(s-6)(-a+2)(-a-2)

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

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

(a+7)(a-7)+(a-1)(a-8)(6s+7)(6s-7)+(4s-8)(3s-8)

(a+10)(a-10)95×85

(8b+5)(8b-5)(-6a+4)(-6a-4)

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

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

(s+3)(s-3)-(s-4)(s+9)(b+6)(b-6)+(3b+1)(3b+7)

(s+8)(s-8)401×399

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

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

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

(a+4)(a-4)+(a+3)(a+4)(2c+9)(2c-9)+(2c+10)(3c-1)

(a+8)(a-8)904×896

(7t+6)(7t-6)(4a+1)(4a-1)

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

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

(x+9)(x-9)+(x+2)(x-8)(t+3)(t-3)-(4t+9)(4t-5)

(t+3)(t-3)102×98

(t+6)(t-6)(-a+b)(-a-b)

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

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

(a+9)(a-9)+(a+4)(a-4)(7s+6)(7s-6)+(4s+6)(2s+7)

(y+8)(y-8)55×45

(s+2)(s-2)(a+b)(a-b)

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

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

(b+3)(b-3)+(b-8)(b+5)(b+8)(b-8)-(4b+9)(2b-6)

(t+8)(t-8)31×29

(7t+8)(7t-8)(5a+1)(5a-1)

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

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

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

(s+4)(s-4)45×35

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

(4x+8y)(4x-8y)(10+b)(10-b)

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

(a+1)(a-1)-(a+4)(a+2)(9c+3)(9c-3)-(3c+3)(3c+5)

(y+7)(y-7)53×47

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

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

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

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

(t+6)(t-6)92×88

(t+8)(t-8)(5a+b)(5a-b)

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

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

(a+10)(a-10)-(a+2)(a-7)(s+10)(s-10)-(4s+10)(2s+10)

(x+9)(x-9)54×46

(c+7)(c-7)(-a+3)(-a-3)

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

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

(x+9)(x-9)+(x+5)(x+8)(6s+8)(6s-8)-(4s-7)(2s+1)

(c+9)(c-9)404×396

(7c+9)(7c-9)(-a+8)(-a-8)

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

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

(y+2)(y-2)-(y-7)(y+9)(t+1)(t-1)-(3t-1)(3t-7)

(t+7)(t-7)74×66

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

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

(-8x+4y)(-8x-4y)(5x+3y)(-5x+3y)

(t+8)(t-8)+(t-4)(t-8)(t+7)(t-7)+(2t-1)(3t-9)

(c+4)(c-4)33×27

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

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

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

(c+9)(c-9)-(c+7)(c+2)(9y+7)(9y-7)+(3y-3)(2y-8)

(b+10)(b-10)83×77

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

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

(8x+3y)(8x-3y)(6+7y)(-6+7y)

(y+9)(y-9)+(y+5)(y-6)(5a+1)(5a-1)+(2a-6)(3a+2)

(a+2)(a-2)904×896

(8a+3)(8a-3)(6a+6)(6a-6)

(4x+9y)(4x-9y)(2+b)(2-b)

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

(y+3)(y-3)+(y-8)(y+1)(b+10)(b-10)+(2b+1)(4b+10)

(s+6)(s-6)502×498

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

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

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

(t+9)(t-9)-(t+9)(t-3)(b+6)(b-6)-(2b+8)(3b-2)

(t+1)(t-1)802×798

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

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

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

(s+2)(s-2)+(s+5)(s+4)(10t+4)(10t-4)+(4t+7)(3t-7)

(x+1)(x-1)72×68

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

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

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

(t+2)(t-2)-(t-8)(t+4)(b+2)(b-2)-(4b-8)(4b-5)

(a+6)(a-6)83×77

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

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

(-x+5y)(-x-5y)(3x+2y)(-3x+2y)

(a+1)(a-1)-(a-8)(a+4)(3b+9)(3b-9)-(4b-8)(4b+8)

(a+10)(a-10)43×37

(3a+4)(3a-4)(a+5)(a-5)

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

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

(c+6)(c-6)-(c+8)(c-6)(8t+5)(8t-5)+(3t+1)(4t-3)

(b+1)(b-1)605×595

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

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

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

(s+6)(s-6)+(s+1)(s+5)(3s+8)(3s-8)-(4s-10)(3s-1)

(t+6)(t-6)104×96

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

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

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

(s+4)(s-4)-(s-3)(s+3)(s+8)(s-8)+(3s-5)(4s+1)

(s+6)(s-6)304×296

(2c+6)(2c-6)(-a+3b)(-a-3b)

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

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

(x+2)(x-2)+(x-7)(x+7)(y+4)(y-4)-(2y-9)(2y-5)

(b+7)(b-7)61×59

(4s+10)(4s-10)(-5a+b)(-5a-b)

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

(6x+7y)(6x-7y)(1+2y)(-1+2y)

(t+6)(t-6)+(t-3)(t+7)(6a+6)(6a-6)-(4a-10)(4a+1)

(y+4)(y-4)93×87

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

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

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

(y+1)(y-1)-(y+1)(y+5)(3t+10)(3t-10)+(3t-3)(2t-7)

(a+3)(a-3)34×26

(c+3)(c-3)(-9a+b)(-9a-b)

(x+6y)(x-6y)(1+2b)(1-2b)

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

(b+1)(b-1)-(b+4)(b-5)(7y+7)(7y-7)+(3y+6)(2y-10)

(b+1)(b-1)201×199

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

(x+7y)(x-7y)(5+3b)(5-3b)

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

(x+3)(x-3)+(x-1)(x-8)(y+3)(y-3)-(2y+2)(2y+5)

(x+4)(x-4)501×499

(6s+5)(6s-5)(4a+1)(4a-1)

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

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

(x+1)(x-1)-(x+6)(x+3)(t+7)(t-7)+(2t-2)(4t+6)

(x+8)(x-8)205×195

(2t+1)(2t-1)(a+2b)(a-2b)

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

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

(b+1)(b-1)+(b+2)(b-1)(b+1)(b-1)+(2b-6)(3b-3)

(s+8)(s-8)105×95

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

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

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

(s+9)(s-9)+(s-4)(s+6)(a+10)(a-10)+(4a+1)(4a+5)

(y+1)(y-1)204×196

(8t+6)(8t-6)(-a+5)(-a-5)

(x+3y)(x-3y)(6+5b)(6-5b)

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

(b+10)(b-10)+(b-8)(b-3)(3s+5)(3s-5)-(2s-6)(4s-8)

(s+3)(s-3)901×899

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

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

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

(t+1)(t-1)+(t+6)(t+7)(4b+5)(4b-5)+(4b+9)(2b+7)

(t+6)(t-6)502×498

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

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

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

(t+2)(t-2)-(t+6)(t+5)(a+2)(a-2)+(4a+3)(3a+9)

(t+9)(t-9)802×798

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

(5x+4y)(5x-4y)(a+8b)(a-8b)

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

(a+2)(a-2)+(a+2)(a-8)(c+10)(c-10)-(4c+10)(3c+1)

(t+6)(t-6)904×896

(8b+9)(8b-9)(4a+7

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