人教版八年级数学上册乘法公式综合练习题精选124.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124.docx

人教版八年级数学上册乘法公式综合练习题精选124

(t+3)(t-3)55×45

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

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

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

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

(a+3)(a-3)205×195

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

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

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

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

(a+6)(a-6)405×395

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

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

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

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

(s+4)(s-4)403×397

(9b+6)(9b-6)(a+1)(a-1)

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

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

(s+6)(s-6)+(s+3)(s-8)(s+1)(s-1)-(4s-9)(2s+4)

(c+3)(c-3)62×58

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

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

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

(b+4)(b-4)+(b+7)(b-5)(3a+10)(3a-10)-(2a-10)(3a-9)

(y+7)(y-7)102×98

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

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

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

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

(c+2)(c-2)301×299

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

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

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

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

(s+2)(s-2)802×798

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

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

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

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

(x+3)(x-3)104×96

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

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

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

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

(b+10)(b-10)92×88

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

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

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

(x+5)(x-5)-(x+9)(x+5)(10c+8)(10c-8)-(2c+5)(3c+7)

(b+4)(b-4)703×697

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

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

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

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

(x+5)(x-5)503×497

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

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

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

(s+8)(s-8)-(s+3)(s-9)(10s+10)(10s-10)+(4s+9)(3s+1)

(s+3)(s-3)94×86

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

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

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

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

(c+4)(c-4)103×97

(t+8)(t-8)(-a+8)(-a-8)

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

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

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

(b+2)(b-2)43×37

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

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

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

(c+6)(c-6)+(c+4)(c+1)(4b+2)(4b-2)+(2b-9)(4b-5)

(s+7)(s-7)605×595

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

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

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

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

(y+1)(y-1)92×88

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

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

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

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

(x+4)(x-4)44×36

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

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

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

(y+1)(y-1)-(y-6)(y+1)(x+2)(x-2)+(4x+2)(4x+7)

(c+4)(c-4)61×59

(x+10)(x-10)(-7a+6b)(-7a-6b)

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

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

(b+10)(b-10)+(b-7)(b-8)(4s+4)(4s-4)-(3s+9)(4s-3)

(c+7)(c-7)603×597

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

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

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

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

(s+7)(s-7)54×46

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

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

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

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

(b+7)(b-7)32×28

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

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

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

(c+4)(c-4)+(c-7)(c-3)(x+7)(x-7)-(4x+3)(3x-9)

(a+8)(a-8)54×46

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

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

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

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

(c+6)(c-6)204×196

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

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

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

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

(c+2)(c-2)94×86

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

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

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

(x+2)(x-2)-(x+4)(x-8)(t+4)(t-4)-(2t+1)(2t-6)

(a+9)(a-9)62×58

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

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

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

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

(c+6)(c-6)71×69

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

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

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

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

(y+3)(y-3)41×39

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

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

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

(s+5)(s-5)+(s-4)(s+7)(t+3)(t-3)+(4t-6)(3t+5)

(y+5)(y-5)404×396

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

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

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

(b+2)(b-2)+(b-6)(b-9)(9a+1)(9a-1)-(4a+10)(4a+5)

(y+10)(y-10)42×38

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

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

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

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

(x+3)(x-3)72×68

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

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

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

(s+6)(s-6)+(s-9)(s-3)(5y+2)(5y-2)+(4y-5)(3y-6)

(c+10)(c-10)95×85

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

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

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

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

(c+8)(c-8)801×799

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

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

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

(s+9)(s-9)+(s-4)(s+5)(5y+3)(5y-3)-(3y-10)(3y+4)

(c+3)(c-3)42×38

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

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

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

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

(b+4)(b-4)33×27

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

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

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

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

(x+2)(x-2)803×797

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

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

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

(c+6)(c-6)+(c+1)(c+2)(b+8)(b-8)+(2b-7)(3b-5)

(s+3)(s-3)84×76

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

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

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

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

(y+4)(y-4)305×295

(2s+7)(2s-7)(5a+9b)(5a-9b)

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

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

(y+9)(y-9)+(y+7)(y+2)(x+4)(x-4)-(2x+10)(4x-6)

(t+7)(t-7)801×799

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

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

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

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

(x+3)(x-3)65×55

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

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

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

(c+4)(c-4)-(c-1)(c+4)(3c+3)(3c-3)+(3c+10)(3c-4)

(b+5)(b-5)82×78

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

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

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

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

(y+2)(y-2)91×89

(s+5)(s-5)(-a+5)(-a-5)

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

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

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

(s+10)(s-10)603×597

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

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

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

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

(c+1)(c-1)601×599

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

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

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

(x+7)(x-7)+(x-9)(x+1)(x+1)(x-1)-(3x+7)(4x-5)

(s+8)(s-8)102×98

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

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

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

(y+1)(y-1)+(y-5)(y+1)(t+7)(t-7)-(2t-4)(4t-3)

(s+1)(s-1)402×398

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

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

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

(a+8)(a-8)+(a-8)(a+6)(b+10)(b-10)+(3b+6)(4b+2)

(b+6)(b-6)904×896

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

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

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

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

(y+8)(y-8)31×29

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

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

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

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

(y+3)(y-3)75×65

(c+1)(c-1)(-5a+4b)(-5a-4b)

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

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

(c+7)(c-7)+(c+2)(c+2)(b+5)(b-5)-(4b-8)(3b-5)

(s+1)(s-1)94×86

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

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

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

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

(a+8)(a-8)905×895

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

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

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

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

(s+1)(s-1)81×79

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

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

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

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

(c+4)(c-4)54×46

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

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

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

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

(a+5)(a-5)805×795

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

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

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

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

(a+10)(a-10)305×295

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

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

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

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

(a+10)(a-10)105×95

(7c+1)(7c-1)(-7a+7b)(-7a-7b)

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

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

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

(b+7)(b-7)61×59

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

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

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

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

(b+4)(b-4)902×898

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

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