人教版八年级数学上册乘法公式综合练习题精选39.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39.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39.docx

人教版八年级数学上册乘法公式综合练习题精选39

(a+3)(a-3)85×75

(5b+1)(5b-1)(2a+4b)(2a-4b)

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

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

(x+10)(x-10)-(x-6)(x-8)(x+2)(x-2)-(3x+6)(3x-10)

(b+10)(b-10)801×799

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

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

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

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

(y+9)(y-9)104×96

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

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

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

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

(y+3)(y-3)502×498

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

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

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

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

(a+3)(a-3)64×56

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

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

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

(s+6)(s-6)-(s+6)(s+4)(s+7)(s-7)+(2s-10)(3s+5)

(x+7)(x-7)94×86

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

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

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

(t+2)(t-2)+(t-6)(t+5)(c+4)(c-4)+(2c+6)(2c+4)

(b+3)(b-3)901×899

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

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

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

(t+5)(t-5)-(t+4)(t-4)(t+10)(t-10)-(3t-1)(3t-9)

(a+8)(a-8)73×67

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

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

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

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

(c+7)(c-7)62×58

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

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

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

(c+1)(c-1)-(c+1)(c-3)(y+9)(y-9)-(3y+8)(3y-6)

(s+1)(s-1)54×46

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

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

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

(c+1)(c-1)+(c-7)(c-1)(5a+8)(5a-8)-(2a-8)(3a+10)

(s+1)(s-1)35×25

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

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

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

(c+5)(c-5)-(c-1)(c+8)(9a+7)(9a-7)-(4a-2)(3a-8)

(a+2)(a-2)102×98

(2y+10)(2y-10)(3a+6)(3a-6)

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

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

(c+10)(c-10)+(c+4)(c-2)(y+2)(y-2)-(4y+3)(3y-10)

(s+8)(s-8)94×86

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

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

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

(s+4)(s-4)+(s-9)(s-4)(y+5)(y-5)+(2y-10)(3y+9)

(s+2)(s-2)902×898

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

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

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

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

(x+8)(x-8)31×29

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

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

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

(x+9)(x-9)+(x-8)(x+9)(y+3)(y-3)-(3y-7)(4y-5)

(x+1)(x-1)102×98

(5x+1)(5x-1)(-3a+2)(-3a-2)

(x+3y)(x-3y)(1+6b)(1-6b)

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

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

(t+9)(t-9)703×697

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

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

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

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

(x+1)(x-1)81×79

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

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

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

(x+5)(x-5)-(x-2)(x+1)(y+5)(y-5)+(4y+7)(4y-2)

(x+3)(x-3)104×96

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

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

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

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

(x+2)(x-2)55×45

(7a+10)(7a-10)(4a+6b)(4a-6b)

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

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

(c+7)(c-7)-(c-4)(c+2)(a+7)(a-7)-(4a+4)(2a-9)

(t+9)(t-9)41×39

(8b+10)(8b-10)(4a+5b)(4a-5b)

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

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

(b+9)(b-9)+(b-3)(b-8)(c+5)(c-5)-(3c-7)(3c+7)

(c+9)(c-9)704×696

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

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

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

(x+2)(x-2)+(x-2)(x+9)(5b+5)(5b-5)+(2b+1)(3b-7)

(t+10)(t-10)43×37

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

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

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

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

(c+3)(c-3)203×197

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

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

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

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

(t+7)(t-7)63×57

(6t+7)(6t-7)(9a+5b)(9a-5b)

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

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

(y+8)(y-8)-(y-7)(y+9)(t+3)(t-3)+(2t+8)(4t+6)

(t+9)(t-9)71×69

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

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

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

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

(x+8)(x-8)52×48

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

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

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

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

(b+6)(b-6)402×398

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

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

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

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

(x+8)(x-8)903×897

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

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

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

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

(c+3)(c-3)81×79

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

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

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

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

(s+1)(s-1)804×796

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

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

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

(a+10)(a-10)+(a-4)(a-2)(a+1)(a-1)-(3a-7)(4a+2)

(y+6)(y-6)802×798

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

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

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

(s+7)(s-7)+(s-2)(s+4)(y+3)(y-3)-(4y+6)(4y-5)

(y+7)(y-7)63×57

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

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

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

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

(a+7)(a-7)204×196

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

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

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

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

(a+3)(a-3)84×76

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

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

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

(a+1)(a-1)-(a+2)(a+5)(10x+4)(10x-4)+(3x+3)(2x-4)

(a+4)(a-4)502×498

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

(7x+4y)(7x-4y)(1+b)(1-b)

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

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

(s+7)(s-7)43×37

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

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

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

(a+4)(a-4)+(a-5)(a+8)(5x+3)(5x-3)-(4x+5)(3x+2)

(c+2)(c-2)603×597

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

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

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

(b+5)(b-5)-(b+2)(b-1)(x+8)(x-8)-(4x-1)(2x-10)

(c+10)(c-10)402×398

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

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

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

(b+8)(b-8)-(b-8)(b-6)(c+10)(c-10)+(2c-8)(4c-10)

(s+8)(s-8)45×35

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

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

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

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

(b+10)(b-10)44×36

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

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

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

(t+9)(t-9)-(t-1)(t+7)(a+2)(a-2)+(3a-6)(3a-2)

(b+3)(b-3)102×98

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

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

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

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

(a+4)(a-4)705×695

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

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

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

(c+7)(c-7)-(c+8)(c-1)(a+8)(a-8)+(2a+8)(4a-5)

(c+10)(c-10)202×198

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

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

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

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

(t+7)(t-7)101×99

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

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

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

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

(x+5)(x-5)92×88

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

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

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

(y+10)(y-10)+(y+9)(y+1)(7y+3)(7y-3)-(2y-9)(3y-10)

(t+7)(t-7)62×58

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

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

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

(s+1)(s-1)+(s-5)(s-1)(s+5)(s-5)+(3s+10)(4s-9)

(a+10)(a-10)404×396

(s+10)(s-10)(-a+8)(-a-8)

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

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

(y+3)(y-3)-(y+1)(y+5)(y+3)(y-3)+(3y+9)(2y-7)

(t+10)(t-10)504×496

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

(2x+y)(2x-y)(10+7b)(10-7b)

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

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

(c+3)(c-3)905×895

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

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

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

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

(a+10)(a-10)92×88

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

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

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

(x+1)(x-1)+(x+7)(x+5)(t+7)(t-7)-(2t+9)(2t+7)

(b+6)(b-6)504×496

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

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

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

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

(b+3)(b-3)51×49

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

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

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

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

(c+2)(c-2)605×595

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

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

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

(y+6)(y-6)+(y-6)(y-9)(c+4)(c-4)+(3c+8)(3c-7)

(s+4)(s-4)305×295

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

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

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

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

(b+8)(b-8)63×57

(5a+10)(5a-10)(6a+b)(6a-b)

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

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

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

(b+10)(b-10)505×495

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

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

(-4x+7y)(-4x-7y)(9+8y)(-9+8y)

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

(s+3)(s-3)

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