人教版八年级数学上册乘法公式综合练习题精选82.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82.docx

人教版八年级数学上册乘法公式综合练习题精选82

(c+1)(c-1)42×38

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

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

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

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

(a+1)(a-1)93×87

(3x+5)(3x-5)(-a+9b)(-a-9b)

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

(-3x+7y)(-3x-7y)(10+4y)(-10+4y)

(x+3)(x-3)+(x-3)(x+4)(a+9)(a-9)-(3a-5)(2a+4)

(y+6)(y-6)34×26

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

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

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

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

(t+4)(t-4)601×599

(5s+10)(5s-10)(7a+2)(7a-2)

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

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

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

(b+1)(b-1)402×398

(6a+5)(6a-5)(5a+2b)(5a-2b)

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

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

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

(y+4)(y-4)73×67

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

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

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

(y+3)(y-3)-(y+2)(y+7)(x+1)(x-1)+(2x+7)(3x-4)

(a+5)(a-5)401×399

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

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

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

(b+2)(b-2)-(b+7)(b-5)(7t+9)(7t-9)+(4t-1)(3t+8)

(b+8)(b-8)63×57

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

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

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

(b+9)(b-9)-(b-4)(b-2)(10c+6)(10c-6)+(3c-1)(2c+2)

(s+8)(s-8)93×87

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

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

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

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

(s+7)(s-7)505×495

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

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

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

(s+9)(s-9)-(s+6)(s+9)(a+3)(a-3)+(2a+9)(3a+7)

(y+3)(y-3)42×38

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

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

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

(x+8)(x-8)-(x-4)(x+3)(t+6)(t-6)-(3t+3)(2t+8)

(s+9)(s-9)701×699

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

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

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

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

(b+2)(b-2)305×295

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

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

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

(a+6)(a-6)-(a+3)(a-3)(7y+9)(7y-9)-(3y-5)(3y-9)

(x+3)(x-3)33×27

(c+10)(c-10)(2a+6b)(2a-6b)

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

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

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

(x+10)(x-10)44×36

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

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

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

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

(a+6)(a-6)901×899

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

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

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

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

(a+3)(a-3)305×295

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

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

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

(s+7)(s-7)-(s-5)(s-8)(t+10)(t-10)-(2t+8)(4t+10)

(b+4)(b-4)51×49

(3s+5)(3s-5)(-9a+3)(-9a-3)

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

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

(b+5)(b-5)+(b+3)(b-8)(b+9)(b-9)+(4b+10)(2b-9)

(t+8)(t-8)801×799

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

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

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

(s+9)(s-9)-(s+9)(s-1)(a+8)(a-8)+(4a-1)(4a-10)

(a+8)(a-8)54×46

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

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

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

(c+7)(c-7)+(c-7)(c+8)(10x+9)(10x-9)+(4x+2)(3x+4)

(x+2)(x-2)803×797

(t+10)(t-10)(-3a+1)(-3a-1)

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

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

(s+9)(s-9)-(s+4)(s+7)(b+8)(b-8)+(4b+2)(3b-3)

(b+8)(b-8)802×798

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

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

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

(b+8)(b-8)-(b-3)(b-9)(a+4)(a-4)-(4a-2)(4a+9)

(t+5)(t-5)703×697

(8s+4)(8s-4)(7a+3b)(7a-3b)

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

(x+5y)(x-5y)(7+8y)(-7+8y)

(c+2)(c-2)-(c+5)(c-9)(y+6)(y-6)-(4y-5)(3y-10)

(s+10)(s-10)91×89

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

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

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

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

(s+2)(s-2)61×59

(t+10)(t-10)(-a+1)(-a-1)

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

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

(y+5)(y-5)-(y-8)(y-8)(10c+3)(10c-3)+(3c-4)(4c-8)

(t+8)(t-8)35×25

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

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

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

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

(b+10)(b-10)104×96

(4t+7)(4t-7)(a+9)(a-9)

(3x+y)(3x-y)(1+2b)(1-2b)

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

(y+4)(y-4)-(y-7)(y+3)(5a+9)(5a-9)-(4a-4)(3a-1)

(x+2)(x-2)803×797

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

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

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

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

(y+1)(y-1)81×79

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

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

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

(s+6)(s-6)-(s+3)(s+1)(10t+9)(10t-9)-(3t+7)(3t+5)

(c+6)(c-6)53×47

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

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

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

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

(b+7)(b-7)72×68

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

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

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

(c+10)(c-10)+(c-9)(c+7)(s+10)(s-10)-(2s+2)(2s+9)

(s+5)(s-5)305×295

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

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

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

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

(s+4)(s-4)81×79

(c+9)(c-9)(7a+3b)(7a-3b)

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

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

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

(a+3)(a-3)503×497

(a+3)(a-3)(a+1)(a-1)

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

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

(s+7)(s-7)-(s+3)(s+5)(a+7)(a-7)-(2a+8)(2a+1)

(b+7)(b-7)91×89

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

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

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

(y+2)(y-2)+(y+3)(y-3)(s+5)(s-5)-(2s-3)(3s-7)

(t+9)(t-9)93×87

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

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

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

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

(y+3)(y-3)403×397

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

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

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

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

(s+3)(s-3)73×67

(2x+10)(2x-10)(a+b)(a-b)

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

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

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

(x+5)(x-5)44×36

(9a+5)(9a-5)(-8a+b)(-8a-b)

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

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

(c+7)(c-7)+(c-5)(c+9)(6c+5)(6c-5)-(3c-9)(2c+6)

(y+8)(y-8)31×29

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

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

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

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

(x+7)(x-7)61×59

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

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

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

(s+5)(s-5)-(s+2)(s+2)(s+5)(s-5)-(4s+2)(3s+6)

(s+9)(s-9)902×898

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

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

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

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

(t+3)(t-3)75×65

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

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

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

(y+10)(y-10)+(y+6)(y-7)(y+2)(y-2)+(3y+9)(2y+10)

(s+1)(s-1)204×196

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

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

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

(t+6)(t-6)-(t-1)(t+1)(x+10)(x-10)-(4x-4)(4x-1)

(s+1)(s-1)501×499

(9s+4)(9s-4)(-7a+1)(-7a-1)

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

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

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

(x+4)(x-4)52×48

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

(2x+y)(2x-y)(1+4b)(1-4b)

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

(c+9)(c-9)-(c-4)(c+2)(5t+6)(5t-6)+(3t-9)(4t-10)

(c+10)(c-10)501×499

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

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

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

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

(a+2)(a-2)702×698

(5t+7)(5t-7)(3a+b)(3a-b)

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

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

(c+6)(c-6)+(c+6)(c-4)(7s+7)(7s-7)+(4s-6)(2s-8)

(s+7)(s-7)101×99

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

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

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

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

(y+6)(y-6)51×49

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

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

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

(c+8)(c-8)-(c-8)(c-6)(c+9)(c-9)+(4c-1)(3c+5)

(x+5)(x-5)404×396

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

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

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

(a+8)(a-8)-(a-3)(a+5)(b+7)(b-7)-(3b+5)(2b+2)

(y+8)(y-8)102×98

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

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

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

(a+8)(a-8)+(a+4)(a-7)(s+2)(s-2)-(2s+10)(2s-1)

(b+7)(b-7)702×698

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

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

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

(x+4)(x-4)+(x+9)(x-7)(9a+4)(9a-4)+(2a-10)(2a-9)

(t+7)(t-7)702×698

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

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

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

(b+8)(b-8)+(b+3)(b+8)(9b+7)(9b-7)+(4b+8)(3b-8)

(b+3)(b-3)704×696

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

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

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

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

(s+8)(s-8)203×197

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

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

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

(t+10)(t-10)-(t+1)(t-3)(8b+9)(8b-9)-(3b+6)(4b-4)

(t+7)(t-7)62×58

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

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

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

(t+1)(t-1)-(t+6)(t-8)(4c+3)(4c-3)+(3c-4)(4c+10)

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