人教版八年级数学上册乘法公式综合练习题精选55.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55.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55.docx

人教版八年级数学上册乘法公式综合练习题精选55

(b+4)(b-4)703×697

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

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

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

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

(s+5)(s-5)73×67

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

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

(6x+7y)(6x-7y)(9x+3y)(-9x+3y)

(x+8)(x-8)+(x+1)(x+3)(b+4)(b-4)-(4b+10)(4b-10)

(b+7)(b-7)502×498

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

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

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

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

(y+5)(y-5)42×38

(y+5)(y-5)(2a+1)(2a-1)

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

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

(b+1)(b-1)+(b-4)(b-1)(5t+2)(5t-2)+(3t-1)(2t+6)

(s+7)(s-7)504×496

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

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

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

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

(y+4)(y-4)72×68

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

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

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

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

(a+5)(a-5)103×97

(7x+3)(7x-3)(-a+5)(-a-5)

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

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

(c+4)(c-4)+(c+3)(c+9)(c+5)(c-5)-(2c+9)(2c+6)

(s+4)(s-4)201×199

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

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

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

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

(x+8)(x-8)71×69

(2b+4)(2b-4)(-7a+1)(-7a-1)

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

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

(y+4)(y-4)-(y-4)(y-7)(x+5)(x-5)+(3x+4)(2x-9)

(b+7)(b-7)804×796

(5y+10)(5y-10)(7a+8b)(7a-8b)

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

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

(a+2)(a-2)-(a-4)(a+7)(y+10)(y-10)-(4y+5)(2y+8)

(c+10)(c-10)902×898

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

(3x+6y)(3x-6y)(4a+7b)(4a-7b)

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

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

(b+7)(b-7)91×89

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

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

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

(t+8)(t-8)+(t+3)(t-8)(x+7)(x-7)-(3x-7)(2x-10)

(c+10)(c-10)85×75

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

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

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

(x+5)(x-5)-(x-5)(x-2)(8t+7)(8t-7)+(4t-2)(3t+3)

(c+4)(c-4)45×35

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

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

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

(t+10)(t-10)+(t-6)(t-5)(7s+4)(7s-4)-(2s+2)(4s-1)

(y+5)(y-5)103×97

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

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

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

(b+1)(b-1)-(b+4)(b+8)(c+6)(c-6)-(3c+6)(4c-1)

(s+9)(s-9)401×399

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

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

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

(y+4)(y-4)+(y+8)(y+1)(7b+8)(7b-8)-(4b+8)(2b-9)

(c+1)(c-1)602×598

(6a+3)(6a-3)(-4a+4)(-4a-4)

(4x+3y)(4x-3y)(5+2b)(5-2b)

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

(y+1)(y-1)-(y-4)(y-9)(y+2)(y-2)+(2y+7)(3y+6)

(x+4)(x-4)73×67

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

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

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

(s+6)(s-6)-(s+2)(s+6)(6a+3)(6a-3)-(4a-3)(3a-8)

(t+9)(t-9)203×197

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

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

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

(s+4)(s-4)+(s+3)(s-1)(c+3)(c-3)+(4c+4)(3c+6)

(t+1)(t-1)34×26

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

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

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

(c+3)(c-3)+(c-7)(c-8)(3a+7)(3a-7)-(3a+6)(2a+10)

(t+1)(t-1)502×498

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

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

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

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

(s+6)(s-6)63×57

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

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

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

(c+6)(c-6)+(c-6)(c+8)(10t+1)(10t-1)-(2t-6)(4t+9)

(b+10)(b-10)85×75

(s+3)(s-3)(-7a+1)(-7a-1)

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

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

(b+4)(b-4)+(b-9)(b-8)(s+2)(s-2)-(2s+6)(4s+7)

(a+10)(a-10)41×39

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

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

(-x+7y)(-x-7y)(10+3y)(-10+3y)

(a+7)(a-7)-(a+8)(a-5)(5s+5)(5s-5)+(4s+9)(2s-5)

(t+9)(t-9)33×27

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

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

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

(y+10)(y-10)-(y+9)(y-4)(10s+8)(10s-8)+(2s+5)(2s-10)

(c+6)(c-6)301×299

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

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

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

(b+9)(b-9)-(b+5)(b+6)(y+5)(y-5)+(2y+7)(3y-3)

(c+4)(c-4)805×795

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

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

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

(y+2)(y-2)+(y-4)(y-4)(s+8)(s-8)-(4s-8)(2s+1)

(t+10)(t-10)305×295

(9c+4)(9c-4)(-3a+b)(-3a-b)

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

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

(b+6)(b-6)+(b-2)(b-6)(3t+1)(3t-1)-(2t+2)(2t-9)

(x+9)(x-9)93×87

(9y+4)(9y-4)(9a+1)(9a-1)

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

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

(t+9)(t-9)-(t-9)(t-8)(b+10)(b-10)+(2b-4)(2b+3)

(a+4)(a-4)502×498

(5c+1)(5c-1)(5a+9)(5a-9)

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

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

(t+1)(t-1)-(t-7)(t-2)(4b+10)(4b-10)+(4b-3)(2b+1)

(b+4)(b-4)703×697

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

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

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

(x+5)(x-5)-(x-4)(x-4)(t+6)(t-6)+(3t-5)(3t+6)

(a+5)(a-5)81×79

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

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

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

(y+2)(y-2)-(y-1)(y+4)(c+3)(c-3)-(4c+5)(2c-6)

(y+9)(y-9)903×897

(c+1)(c-1)(a+b)(a-b)

(4x+2y)(4x-2y)(5+b)(5-b)

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

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

(t+7)(t-7)94×86

(5s+7)(5s-7)(a+9)(a-9)

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

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

(b+1)(b-1)+(b-1)(b-7)(8y+10)(8y-10)-(2y-2)(3y-5)

(t+8)(t-8)601×599

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

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

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

(s+8)(s-8)+(s+2)(s+9)(3c+6)(3c-6)+(4c+2)(3c+6)

(y+3)(y-3)64×56

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

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

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

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

(x+9)(x-9)63×57

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

(5x+y)(5x-y)(1+7b)(1-7b)

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

(a+7)(a-7)+(a-6)(a+9)(7c+1)(7c-1)-(3c+8)(3c-9)

(y+2)(y-2)83×77

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

(9x+5y)(9x-5y)(10+3b)(10-3b)

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

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

(a+1)(a-1)52×48

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

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

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

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

(y+4)(y-4)204×196

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

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

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

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

(t+1)(t-1)42×38

(s+5)(s-5)(7a+8)(7a-8)

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

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

(t+6)(t-6)-(t+8)(t-1)(5s+10)(5s-10)-(2s-6)(4s+2)

(c+6)(c-6)201×199

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

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

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

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

(x+9)(x-9)61×59

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

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

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

(y+5)(y-5)+(y+6)(y+5)(b+8)(b-8)-(4b-5)(3b+5)

(y+8)(y-8)64×56

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

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

(-8x+5y)(-8x-5y)(9x+2y)(-9x+2y)

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

(t+5)(t-5)43×37

(7a+4)(7a-4)(3a+6)(3a-6)

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

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

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

(s+2)(s-2)803×797

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

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

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

(x+8)(x-8)+(x+9)(x+6)(10a+7)(10a-7)+(3a+8)(3a+3)

(x+3)(x-3)45×35

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

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

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

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

(a+9)(a-9)52×48

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

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

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

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

(b+8)(b-8)71×69

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

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

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

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

(a+7)(a-7)803×797

(s+2)(s-2)(-3a+9)(-3a-9)

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

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

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

(t+4)(t-4)202×198

(c+8)(c-8)(-5a+8)(-5a-8)

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

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

(s+10)(s-10)-(s+5)(s-2)(8a+3)(8a-3)-(4a-10)(2a-4)

(a+4)(a-4)904×896

(5c+10)(5c-10)(-a+4)(-a-4)

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

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

(x+6)(x-6)+(x-1)(x+3)(y+9)(y-9)+(3y-9)(2y+4)

(y+2)(y-2)84×76

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

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

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

(c+1)(c-1)+(c+1)(c-6)(2c+2)(2c-2)+(2c+6)(4c+3)

(x+3)(x-3)95×85

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

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

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

(x+8)(x-8)+(x+8)(x-7)(s+7)(s-7)-(3s-3)(2s-4)

(c+8)(c-8)43×37

(6t+3)(6t-3)(-9a+b)(-9a-b)

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

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

(x+5)(x-5)-(x+6)(x-8)(8b+8)(8b-8)+(2b-2)(4b+1)

(s+4)(s-4)51×49

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

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

(-5x+7y)(-5x-7y)(3+6y)(-3+6y)

(a+7)(a-7)-(a+2)(a+5)(t+2)(t-2)-(4t+3)(3t-6)

(a+3)(a-3)61×59

(c+10)(c-10)(a+b)(a-b)

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

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

(t+10)(t-10)-(t-9)(t+1)(2x+6)(2x-6)+(4x+7)(3x-3)

(b+2)(b-2)64×56

(6a+1)(6a-1

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