人教版八年级数学上册乘法公式综合练习题精选71.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71.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71
(c+1)(c-1)702×698
(t+5)(t-5)(6a+4)(6a-4)
(x+y)(x-y)(9a+8b)(9a-8b)
(-5x+2y)(-5x-2y)(7+y)(-7+y)
(b+7)(b-7)+(b-1)(b+3)(2a+3)(2a-3)+(3a+4)(4a+2)
(s+8)(s-8)92×88
(3a+9)(3a-9)(-a+3)(-a-3)
(x+y)(x-y)(5a+4b)(5a-4b)
(-x+y)(-x-y)(10+y)(-10+y)
(t+2)(t-2)-(t-8)(t+4)(8t+8)(8t-8)-(3t-9)(4t+8)
(a+9)(a-9)75×65
(b+9)(b-9)(-a+5b)(-a-5b)
(6x+y)(6x-y)(8a+b)(8a-b)
(9x+9y)(9x-9y)(7x+6y)(-7x+6y)
(y+3)(y-3)-(y+2)(y+2)(7s+2)(7s-2)-(2s+7)(2s+3)
(y+6)(y-6)83×77
(7t+4)(7t-4)(a+b)(a-b)
(4x+y)(4x-y)(6+2b)(6-2b)
(6x+y)(6x-y)(7x+y)(-7x+y)
(b+1)(b-1)-(b-1)(b-9)(7a+1)(7a-1)+(2a-9)(3a-5)
(s+4)(s-4)205×195
(6b+10)(6b-10)(-a+b)(-a-b)
(5x+y)(5x-y)(6+b)(6-b)
(4x+6y)(4x-6y)(9+y)(-9+y)
(x+3)(x-3)-(x-5)(x+4)(7t+3)(7t-3)+(4t-8)(3t+9)
(y+2)(y-2)91×89
(5s+6)(5s-6)(-a+9)(-a-9)
(x+2y)(x-2y)(a+6b)(a-6b)
(x+y)(x-y)(4+y)(-4+y)
(x+2)(x-2)-(x-4)(x+7)(x+5)(x-5)-(3x+7)(2x-8)
(s+3)(s-3)81×79
(s+3)(s-3)(a+b)(a-b)
(x+8y)(x-8y)(3a+b)(3a-b)
(-8x+9y)(-8x-9y)(x+y)(-x+y)
(x+10)(x-10)-(x-2)(x+1)(x+3)(x-3)+(2x-10)(3x+1)
(a+4)(a-4)102×98
(a+5)(a-5)(-6a+1)(-6a-1)
(x+y)(x-y)(3a+b)(3a-b)
(5x+y)(5x-y)(5x+y)(-5x+y)
(c+9)(c-9)+(c-2)(c-6)(2a+10)(2a-10)+(3a+2)(2a+3)
(x+1)(x-1)44×36
(7c+5)(7c-5)(-9a+b)(-9a-b)
(6x+y)(6x-y)(9+b)(9-b)
(-x+6y)(-x-6y)(7x+8y)(-7x+8y)
(c+8)(c-8)+(c-6)(c+4)(6a+6)(6a-6)-(3a-3)(2a+3)
(s+1)(s-1)605×595
(a+6)(a-6)(a+b)(a-b)
(x+4y)(x-4y)(a+b)(a-b)
(5x+5y)(5x-5y)(x+7y)(-x+7y)
(a+6)(a-6)+(a+1)(a+6)(t+2)(t-2)-(3t+5)(2t+10)
(c+10)(c-10)71×69
(c+6)(c-6)(-8a+6)(-8a-6)
(x+8y)(x-8y)(7+4b)(7-4b)
(-x+3y)(-x-3y)(9+2y)(-9+2y)
(t+5)(t-5)+(t-5)(t-2)(10t+9)(10t-9)-(2t-10)(4t-4)
(b+4)(b-4)104×96
(5t+3)(5t-3)(-a+b)(-a-b)
(2x+y)(2x-y)(7a+b)(7a-b)
(x+8y)(x-8y)(7+3y)(-7+3y)
(b+7)(b-7)+(b+5)(b-5)(6t+4)(6t-4)-(2t-7)(4t-5)
(b+9)(b-9)805×795
(b+4)(b-4)(-a+b)(-a-b)
(3x+7y)(3x-7y)(a+b)(a-b)
(-x+y)(-x-y)(9+6y)(-9+6y)
(b+7)(b-7)+(b-9)(b-5)(8y+3)(8y-3)-(3y+6)(2y-9)
(b+10)(b-10)73×67
(t+9)(t-9)(a+4)(a-4)
(x+5y)(x-5y)(3+b)(3-b)
(-x+y)(-x-y)(4+9y)(-4+9y)
(s+3)(s-3)-(s+9)(s+8)(3a+5)(3a-5)+(4a-7)(4a+2)
(y+2)(y-2)405×395
(s+6)(s-6)(7a+3b)(7a-3b)
(x+5y)(x-5y)(a+2b)(a-2b)
(-x+y)(-x-y)(3+y)(-3+y)
(y+6)(y-6)-(y-4)(y-4)(9x+3)(9x-3)+(2x-9)(4x+10)
(s+10)(s-10)72×68
(4x+4)(4x-4)(8a+9)(8a-9)
(x+3y)(x-3y)(5a+9b)(5a-9b)
(-x+9y)(-x-9y)(x+2y)(-x+2y)
(y+10)(y-10)+(y-4)(y-4)(2c+8)(2c-8)+(2c-5)(3c+7)
(b+2)(b-2)901×899
(7t+10)(7t-10)(-a+6b)(-a-6b)
(x+y)(x-y)(5a+7b)(5a-7b)
(4x+5y)(4x-5y)(5+y)(-5+y)
(t+2)(t-2)+(t+3)(t+2)(c+6)(c-6)+(4c+3)(2c+10)
(x+5)(x-5)902×898
(2s+10)(2s-10)(-2a+5)(-2a-5)
(5x+8y)(5x-8y)(7+b)(7-b)
(2x+7y)(2x-7y)(5+y)(-5+y)
(b+10)(b-10)+(b+4)(b-1)(s+3)(s-3)+(3s-8)(3s+2)
(t+6)(t-6)304×296
(x+5)(x-5)(a+b)(a-b)
(x+3y)(x-3y)(5+6b)(5-6b)
(x+y)(x-y)(7+y)(-7+y)
(y+9)(y-9)-(y-6)(y-2)(t+5)(t-5)+(4t+9)(2t-5)
(y+10)(y-10)81×79
(4c+7)(4c-7)(7a+6)(7a-6)
(x+8y)(x-8y)(8+b)(8-b)
(x+y)(x-y)(7+7y)(-7+7y)
(b+2)(b-2)+(b+8)(b+6)(b+10)(b-10)+(3b+3)(3b-1)
(x+10)(x-10)703×697
(3x+8)(3x-8)(-3a+8)(-3a-8)
(x+7y)(x-7y)(5+b)(5-b)
(x+7y)(x-7y)(6+y)(-6+y)
(x+10)(x-10)-(x+4)(x+3)(b+5)(b-5)+(4b-4)(2b+6)
(a+4)(a-4)64×56
(2t+9)(2t-9)(8a+3)(8a-3)
(3x+7y)(3x-7y)(10+b)(10-b)
(x+2y)(x-2y)(x+8y)(-x+8y)
(t+7)(t-7)-(t+8)(t+1)(6a+4)(6a-4)+(2a+10)(4a-4)
(c+3)(c-3)63×57
(9t+2)(9t-2)(a+b)(a-b)
(7x+6y)(7x-6y)(9a+b)(9a-b)
(3x+2y)(3x-2y)(3x+y)(-3x+y)
(t+7)(t-7)-(t-4)(t-5)(c+1)(c-1)-(4c-1)(3c-6)
(s+7)(s-7)105×95
(x+2)(x-2)(-9a+6)(-9a-6)
(x+y)(x-y)(8+b)(8-b)
(9x+y)(9x-y)(6x+7y)(-6x+7y)
(t+6)(t-6)+(t-3)(t-8)(x+4)(x-4)+(2x-8)(3x-2)
(a+3)(a-3)501×499
(y+1)(y-1)(-a+6b)(-a-6b)
(8x+4y)(8x-4y)(6+b)(6-b)
(6x+2y)(6x-2y)(5+y)(-5+y)
(y+1)(y-1)-(y+7)(y+2)(t+9)(t-9)+(2t-10)(3t+2)
(b+6)(b-6)41×39
(a+2)(a-2)(-a+9)(-a-9)
(x+4y)(x-4y)(a+b)(a-b)
(x+4y)(x-4y)(x+2y)(-x+2y)
(s+7)(s-7)+(s+7)(s-7)(3b+4)(3b-4)+(3b+3)(3b+9)
(b+3)(b-3)92×88
(3y+7)(3y-7)(5a+6)(5a-6)
(5x+y)(5x-y)(6a+b)(6a-b)
(-x+y)(-x-y)(7+y)(-7+y)
(b+1)(b-1)+(b-1)(b-7)(9b+10)(9b-10)-(3b-2)(3b+6)
(a+5)(a-5)701×699
(x+4)(x-4)(7a+8b)(7a-8b)
(x+3y)(x-3y)(7a+4b)(7a-4b)
(x+9y)(x-9y)(8x+y)(-8x+y)
(x+4)(x-4)+(x-5)(x-6)(a+5)(a-5)+(3a-2)(2a+4)
(t+9)(t-9)703×697
(b+2)(b-2)(-8a+5b)(-8a-5b)
(3x+y)(3x-y)(6a+2b)(6a-2b)
(5x+y)(5x-y)(9x+y)(-9x+y)
(x+9)(x-9)+(x+3)(x+8)(s+8)(s-8)-(2s+3)(3s+3)
(b+5)(b-5)502×498
(b+10)(b-10)(-a+4)(-a-4)
(8x+6y)(8x-6y)(4a+b)(4a-b)
(6x+5y)(6x-5y)(x+y)(-x+y)
(b+8)(b-8)+(b+7)(b-6)(a+5)(a-5)-(4a-5)(2a-9)
(x+9)(x-9)101×99
(y+6)(y-6)(-a+2b)(-a-2b)
(7x+4y)(7x-4y)(5+3b)(5-3b)
(x+2y)(x-2y)(x+5y)(-x+5y)
(s+2)(s-2)-(s-5)(s+1)(c+5)(c-5)+(3c-9)(3c-9)
(b+8)(b-8)305×295
(t+3)(t-3)(-a+5b)(-a-5b)
(x+7y)(x-7y)(3a+b)(3a-b)
(-x+y)(-x-y)(2x+y)(-2x+y)
(c+7)(c-7)+(c+6)(c+1)(c+8)(c-8)+(2c+4)(2c+5)
(a+6)(a-6)93×87
(b+4)(b-4)(a+3b)(a-3b)
(9x+2y)(9x-2y)(6a+5b)(6a-5b)
(-x+2y)(-x-2y)(4+2y)(-4+2y)
(t+8)(t-8)+(t+6)(t-3)(4c+10)(4c-10)-(3c-8)(3c-4)
(s+2)(s-2)202×198
(c+8)(c-8)(-a+9)(-a-9)
(x+y)(x-y)(a+6b)(a-6b)
(-5x+4y)(-5x-4y)(5+y)(-5+y)
(b+7)(b-7)+(b-1)(b+1)(2t+6)(2t-6)+(3t+1)(3t+9)
(b+5)(b-5)52×48
(b+1)(b-1)(-4a+b)(-4a-b)
(x+y)(x-y)(4a+b)(4a-b)
(x+7y)(x-7y)(x+5y)(-x+5y)
(s+9)(s-9)-(s+8)(s+6)(7c+1)(7c-1)+(4c+2)(3c+9)
(y+10)(y-10)102×98
(b+6)(b-6)(a+6)(a-6)
(5x+9y)(5x-9y)(7+b)(7-b)
(4x+y)(4x-y)(7x+8y)(-7x+8y)
(b+4)(b-4)-(b+3)(b-2)(8a+9)(8a-9)+(4a-1)(3a-1)
(y+4)(y-4)64×56
(s+6)(s-6)(-a+6)(-a-6)
(x+y)(x-y)(4+3b)(4-3b)
(-x+3y)(-x-3y)(5x+4y)(-5x+4y)
(b+9)(b-9)+(b+9)(b+3)(2t+3)(2t-3)-(3t+9)(2t+4)
(t+2)(t-2)804×796
(3s+2)(3s-2)(a+2)(a-2)
(6x+y)(6x-y)(a+8b)(a-8b)
(x+y)(x-y)(7+7y)(-7+7y)
(b+4)(b-4)-(b+2)(b+8)(s+9)(s-9)-(2s+8)(4s-7)
(c+7)(c-7)85×75
(7b+4)(7b-4)(-a+8)(-a-8)
(6x+y)(6x-y)(2a+b)(2a-b)
(-5x+y)(-5x-y)(4x+y)(-4x+y)
(y+3)(y-3)+(y-6)(y-4)(4x+4)(4x-4)+(3x+9)(3x+1)
(s+3)(s-3)801×799
(4y+10)(4y-10)(-8a+8)(-8a-8)
(5x+y)(5x-y)(a+b)(a-b)
(-3x+y)(-3x-y)(x+y)(-x+y)
(b+7)(b-7)+(b+7)(b-2)(c+7)(c-7)+(4c+4)(3c-5)
(s+5)(s-5)401×399
(5s+10)(5s-10)(-a+3)(-a-3)
(8x+y)(8x-y)(3+b)(3-b)
(4x+y)(4x-y)(5+y)(-5+y)
(y+1)(y-1)+(y+4)(y+2)(8y+6)(8y-6)-(2y-2)(4y-1)
(a+10)(a-10)42×38
(2s+7)(2s-7)(8a+5b)(8a-5b)
(x+8y)(x-8y)(6+5b)(6-5b)
(4x+6y)(4x-6y)(6+y)(-6+y)
(b+1)(b-1)+(b-8)(b-1)(3x+9)(3x-9)-(4x+9)(2x+5)
(x+8)(x-8)502×498
(8x+3)(8x-3)(a+1)(a-1)
(x+y)(x-y)(9a+b)(9a-b)
(3x+y)(3x-y)(6+3y)(-6+3y)
(t+5)(t-5)+(t+2)(t-8)(t+2)(t-2)-(4t-7)(4t-1)
(b+2)(b-2)602×598
(a+2)(a-2)(a+7b)(a-7b)
(x+y)(x-y)(a+5b)(a-5b)
(x+y)(x-y)(8+6y)(-8+6y)
(s+8)(s-8)+(s-5)(s+7)(a+7)(a-7)+(4a-9)(2a-7)
(y+9)(y-9)95×85
(2b+9)(2b-9)(-4a+6)(-4a-6)
(4x+y)(4x-y)(3+b)(3-b)
(-x+y)(-x-y)(6x+y)(-6x+y)
(y+1)(y-1)-(y-9)(y+7)(x+9)(x-9)-(3x-8)(2x-8)
(b+10)(b-10)503×497
(y+3)(y-3)(-4a+b)(-4a-b)
(x+y)(x-y)(a+9b)(a-9b)
(-6x+y)(-6x-y)(5+y)(-5+y)
(t+7)(t-7)-(t+4)(t-5)(t+6)(t-6)+(2t+10)(4t-7)
(s+4)(s-4)902×898
(4c+9)(4c-9)(-8a+8)(-8a-8)
(9x+y)(9x-y)(8a+4b)(8a-4b)
(5x+y)(5x-y)(6x+5y)(-6x+5y)
(b+5)(b-5)+(b+3)(b+5)(b+10)(b-10)+(4b+8)(3b+7)
(x+4)(x-4)602×598
(4c+4)(4c-4)(6a+1)(6a-1)
(8x+y)(8x-y)(2+b)(2-b)
(x+y)(x-y)(3x+y)(-3x+y)
(c+3)(c-3)+(c+5)(c+6)(y+4)(y-4)+(3y+8)(2y-1)
(b+10)(b-10)32×28
(a+8)(a-8)(-a+3)(-a-3)
(x+9y)(x-9y)(8+b)(8-b)
(3x+4y)(3x-4y)(8+y)(-8+y)
(t+4)(t-4)+(t-2)(t-7)(c+10)(c-10)-(3c-6)(2c-3)
(a+7)(a-7)64×56
(b+8)(b-8)(9a+5)(9a-5)
(7x+y)(7x-y)(7a+b)(7a-b)
(-x+5y)(-x-5y)(1+y)(-1+y)
(a+3)(a-3)+(a+1)(a-3)(7b+4)(7b-4)-(4b+6)(4b-9)
(s+7)(s-7)201×199
(6b+6)(6b-6)(a+7)(a-7)
(x+5y)(x-5y)(3+2b)(3-2b)
(x+8y)(x-8y)(x+3y)(-x+3y)
(t+9)(t-9)+(t+3)(t-4)(9c+5)(9c-5)-(3c+5)(2c+1)
(t+4)(t-4)45×35
(b+2)(b-2)(a+1)(a-1)
(x+2y)(x-2y)(5+3b)(5-3b)
(-x+7y)(-x-7y)(6+6y)(-6+6y)
(b+3)(b-3)-(b-6)(b-4)(4x+7)(4x-7)+(4x-6)(4x+6)
(t+2)(t-2)94×86
(9t+6)(9t-6)(-a+b)(-a-b)
(x+y)(x-y)(a+2b)(a-2b)
(x+7y)(x-7y)(10+y)(-10+y)
(b+1)(b-1)+(b+2)(b+8)(2a+1)(2a-1)-(3a+1)(2a+1)
(c+8)(c-8)801×799
(y+3)(y-3)(-6a+7)(-6a-7)
(5x+y)(5x-y)(3+b)(3-b)
(-x+y)(-x-y)(9+8y)(-9+8y)
(c+6)(c-6)+(c+2)(c-8)(4t+10)(4t-10)+(4t+5)(2t-3)
(y+6)(y-6)85×75
(5s+7)(5s-7)(a+7)(a-7)
(x+6y)(x-6y)(a+2b)(a-2b)
(x+2y)(x-2y)(8+3y)(-8+3y)
(x+2)(x-2)+(x+5)(x+5)(a+4)(a-4)+(4a-5)(3a+10)
(a+4)(a-4)304×296
(8t+8)(8t-8)(3a+8)(3a-8)
(x+9y)(x-9y)(a+b)(a-b)
(3x+3y)(3x-3y)(1+2y)(-1+2y)
(c+8)(c-8)+(c-8)(c+1)(3c+8)(3c-8)-(2c+9)(2c+4)
(t+1)(t-1)55×45
(y+6)(y-6)(8a+4b)(8a-4b)
(x+9y)(x-9y)(a+7b)(a-7b)
(-4x+7y)(-4x-7y)(x+y)(-x+y)
(c+2)(c-2)-(c+2)(c+8)(3b+7)(3b-7)+(3b+8)(3b-4)
(a+5)(a-5)501×499
(5a+8)(5a-8)
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