人教版八年级数学上册乘法公式综合练习题精选10.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10.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10.docx

人教版八年级数学上册乘法公式综合练习题精选10

(x+7)(x-7)42×38

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

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

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

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

(b+9)(b-9)603×597

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

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

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

(t+5)(t-5)-(t-6)(t+2)(x+10)(x-10)+(4x-8)(2x-7)

(t+1)(t-1)73×67

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

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

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

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

(y+8)(y-8)44×36

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

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

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

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

(b+1)(b-1)63×57

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

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

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

(a+4)(a-4)+(a+3)(a+1)(c+3)(c-3)-(2c-6)(2c-7)

(y+2)(y-2)604×596

(4y+7)(4y-7)(a+1)(a-1)

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

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

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

(c+8)(c-8)31×29

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

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

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

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

(a+3)(a-3)504×496

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

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

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

(c+6)(c-6)-(c-6)(c+9)(4c+7)(4c-7)-(4c-7)(2c-10)

(c+1)(c-1)501×499

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

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

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

(a+3)(a-3)+(a-8)(a+9)(s+4)(s-4)-(4s-2)(4s+1)

(b+10)(b-10)203×197

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

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

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

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

(a+4)(a-4)701×699

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

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

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

(s+2)(s-2)+(s-1)(s-7)(10s+2)(10s-2)-(4s+9)(4s+6)

(c+7)(c-7)902×898

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

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

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

(b+7)(b-7)+(b+7)(b-8)(t+2)(t-2)+(4t-3)(3t-2)

(t+8)(t-8)602×598

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

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

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

(c+3)(c-3)+(c+8)(c+2)(a+2)(a-2)-(2a-3)(3a+5)

(c+1)(c-1)902×898

(3b+2)(3b-2)(7a+1)(7a-1)

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

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

(s+5)(s-5)+(s-1)(s+4)(s+6)(s-6)-(3s+8)(2s-10)

(c+5)(c-5)702×698

(8s+9)(8s-9)(9a+3b)(9a-3b)

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

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

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

(c+1)(c-1)601×599

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

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

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

(y+2)(y-2)+(y-8)(y+3)(10x+2)(10x-2)-(2x+10)(2x+4)

(t+4)(t-4)65×55

(6x+3)(6x-3)(a+9)(a-9)

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

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

(y+7)(y-7)+(y-8)(y-7)(2y+9)(2y-9)+(2y+8)(2y+5)

(t+5)(t-5)93×87

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

(8x+3y)(8x-3y)(9+4b)(9-4b)

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

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

(t+1)(t-1)33×27

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

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

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

(c+1)(c-1)-(c-6)(c-4)(b+7)(b-7)+(3b+1)(3b+8)

(s+1)(s-1)803×797

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

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

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

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

(t+2)(t-2)45×35

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

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

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

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

(b+7)(b-7)902×898

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

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

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

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

(c+2)(c-2)301×299

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

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

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

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

(c+5)(c-5)82×78

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

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

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

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

(y+6)(y-6)302×298

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

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

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

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

(b+9)(b-9)504×496

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

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

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

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

(c+7)(c-7)203×197

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

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

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

(c+10)(c-10)-(c+7)(c+9)(a+5)(a-5)+(2a-3)(2a+1)

(c+10)(c-10)201×199

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

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

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

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

(y+7)(y-7)41×39

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

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

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

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

(y+9)(y-9)95×85

(t+4)(t-4)(2a+3b)(2a-3b)

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

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

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

(c+1)(c-1)802×798

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

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

(-8x+2y)(-8x-2y)(1+6y)(-1+6y)

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

(a+3)(a-3)75×65

(8c+5)(8c-5)(a+4)(a-4)

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

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

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

(y+2)(y-2)702×698

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

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

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

(a+8)(a-8)-(a+1)(a+4)(7a+9)(7a-9)+(3a-9)(4a-8)

(a+6)(a-6)605×595

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

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

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

(y+1)(y-1)+(y-4)(y-1)(9t+1)(9t-1)+(2t+7)(2t+10)

(c+2)(c-2)85×75

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

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

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

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

(y+6)(y-6)72×68

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

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

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

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

(y+4)(y-4)404×396

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

(7x+4y)(7x-4y)(6+9b)(6-9b)

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

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

(b+7)(b-7)32×28

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

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

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

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

(t+6)(t-6)304×296

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

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

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

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

(b+3)(b-3)704×696

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

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

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

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

(b+7)(b-7)301×299

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

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

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

(x+6)(x-6)+(x-7)(x+7)(10s+9)(10s-9)-(3s+3)(4s-5)

(s+5)(s-5)82×78

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

(6x+y)(6x-y)(9a+3b)(9a-3b)

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

(c+8)(c-8)+(c-1)(c+1)(c+10)(c-10)-(4c+4)(2c-7)

(y+7)(y-7)205×195

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

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

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

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

(x+9)(x-9)101×99

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

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

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

(t+5)(t-5)+(t+6)(t-5)(a+10)(a-10)-(2a+3)(4a-8)

(a+3)(a-3)803×797

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

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

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

(c+5)(c-5)-(c+3)(c+7)(5y+10)(5y-10)-(3y-7)(4y+1)

(c+5)(c-5)74×66

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

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

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

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

(s+4)(s-4)404×396

(2s+5)(2s-5)(a+8)(a-8)

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

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

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

(s+5)(s-5)41×39

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

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

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

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

(s+5)(s-5)701×699

(9c+4)(9c-4)(-a+5)(-a-5)

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

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

(s+9)(s-9)-(s-3)(s+9)(6c+10)(6c-10)+(3c+6)(4c+9)

(s+10)(s-10)74×66

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

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

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

(a+8)(a-8)+(a+3)(a-8)(9y+4)(9y-4)-(2y+5)(4y+7)

(b+7)(b-7)301×299

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

(5x+7y)(5x-7y)(10+6b)(10-6b)

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

(c+10)(c-10)-(c+2)(c-5)(6b+2)(6b-2)-(2b-5)(4b-4)

(s+7)(s-7)75×65

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

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

(4x+7y)(4x-7y)(2+6y)(-2+6y)

(t+3)(t-3)-(t+1)(t-3)(6c+7)(6c-7)-(4c+8)(4c+2)

(a+5)(a-5)401×399

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

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

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

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

(t+8)(t-8)43×37

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

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

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

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

(a+4)(a-4)51×49

(c+1)(c-1)(a+6b)(a-6b)

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

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

(y+9)(y-9)+(y-2)(y+7)(5x+10)(5x-10)-(4x+4)(3x+4)

(s+10)(s-10)404×396

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

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

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

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

(c+10)(c-10)32×28

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

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

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

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

(t+8)(t-8)404×396

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