人教版八年级数学上册乘法公式综合练习题精选142.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142
(s+6)(s-6)605×595
(5b+2)(5b-2)(a+b)(a-b)
(x+7y)(x-7y)(7+b)(7-b)
(-x+y)(-x-y)(x+y)(-x+y)
(x+10)(x-10)-(x+8)(x+6)(4t+2)(4t-2)-(2t-2)(4t+5)
(c+8)(c-8)902×898
(3b+7)(3b-7)(6a+4)(6a-4)
(8x+y)(8x-y)(6+4b)(6-4b)
(x+y)(x-y)(x+y)(-x+y)
(t+8)(t-8)-(t-8)(t-4)(3y+10)(3y-10)+(2y+2)(4y+9)
(a+1)(a-1)504×496
(4c+8)(4c-8)(-a+b)(-a-b)
(4x+y)(4x-y)(3+6b)(3-6b)
(x+9y)(x-9y)(x+9y)(-x+9y)
(t+4)(t-4)+(t-5)(t-2)(2x+3)(2x-3)+(2x-1)(2x-2)
(c+3)(c-3)75×65
(5s+10)(5s-10)(-a+9b)(-a-9b)
(x+9y)(x-9y)(a+b)(a-b)
(x+y)(x-y)(1+y)(-1+y)
(a+8)(a-8)-(a-9)(a+4)(5t+7)(5t-7)+(3t+6)(4t+3)
(y+5)(y-5)74×66
(t+2)(t-2)(-a+9b)(-a-9b)
(4x+y)(4x-y)(3+4b)(3-4b)
(3x+5y)(3x-5y)(6+4y)(-6+4y)
(y+9)(y-9)+(y-2)(y+2)(6s+10)(6s-10)-(4s+6)(3s+6)
(b+7)(b-7)503×497
(9x+9)(9x-9)(a+5)(a-5)
(7x+9y)(7x-9y)(7a+b)(7a-b)
(-x+y)(-x-y)(1+y)(-1+y)
(s+9)(s-9)+(s-6)(s-7)(b+10)(b-10)+(4b+10)(2b+9)
(s+6)(s-6)53×47
(x+2)(x-2)(4a+4)(4a-4)
(x+9y)(x-9y)(3+b)(3-b)
(x+3y)(x-3y)(3+5y)(-3+5y)
(c+7)(c-7)-(c-5)(c-1)(c+4)(c-4)-(2c-3)(2c-10)
(c+1)(c-1)403×397
(b+1)(b-1)(-3a+b)(-3a-b)
(x+7y)(x-7y)(9+b)(9-b)
(x+3y)(x-3y)(4x+4y)(-4x+4y)
(y+10)(y-10)-(y-1)(y+9)(t+4)(t-4)-(3t-7)(2t+9)
(s+6)(s-6)404×396
(t+1)(t-1)(-a+7)(-a-7)
(9x+2y)(9x-2y)(a+6b)(a-6b)
(-2x+y)(-2x-y)(3+y)(-3+y)
(c+2)(c-2)-(c+7)(c+9)(s+10)(s-10)+(2s-6)(4s+6)
(a+7)(a-7)403×397
(5a+10)(5a-10)(3a+9b)(3a-9b)
(x+3y)(x-3y)(1+b)(1-b)
(-x+2y)(-x-2y)(3x+2y)(-3x+2y)
(t+8)(t-8)+(t+2)(t-1)(t+6)(t-6)+(4t-10)(3t-6)
(b+2)(b-2)93×87
(3s+4)(3s-4)(5a+b)(5a-b)
(2x+8y)(2x-8y)(a+5b)(a-5b)
(5x+y)(5x-y)(9+y)(-9+y)
(t+1)(t-1)-(t-6)(t+4)(4x+8)(4x-8)+(3x-2)(3x+7)
(b+7)(b-7)54×46
(6t+6)(6t-6)(-8a+3)(-8a-3)
(x+3y)(x-3y)(6a+b)(6a-b)
(-5x+y)(-5x-y)(x+y)(-x+y)
(c+8)(c-8)-(c+7)(c-1)(9x+3)(9x-3)-(3x+7)(3x+1)
(x+10)(x-10)43×37
(a+10)(a-10)(-a+6)(-a-6)
(x+5y)(x-5y)(9+6b)(9-6b)
(9x+6y)(9x-6y)(5+6y)(-5+6y)
(s+10)(s-10)+(s-2)(s-1)(7y+3)(7y-3)-(3y-9)(3y+9)
(b+6)(b-6)501×499
(2b+6)(2b-6)(-8a+b)(-8a-b)
(x+2y)(x-2y)(a+b)(a-b)
(-x+y)(-x-y)(5x+6y)(-5x+6y)
(y+9)(y-9)+(y-9)(y-1)(5a+8)(5a-8)-(3a-5)(3a-4)
(x+9)(x-9)51×49
(9b+9)(9b-9)(-a+6)(-a-6)
(6x+y)(6x-y)(7+b)(7-b)
(3x+y)(3x-y)(2x+y)(-2x+y)
(y+10)(y-10)+(y+8)(y-2)(6y+2)(6y-2)+(3y-2)(3y+6)
(s+8)(s-8)103×97
(c+7)(c-7)(-7a+5)(-7a-5)
(x+y)(x-y)(2+9b)(2-9b)
(-7x+y)(-7x-y)(2x+y)(-2x+y)
(y+1)(y-1)+(y-9)(y-8)(a+10)(a-10)-(3a+4)(4a+3)
(c+1)(c-1)95×85
(s+1)(s-1)(-3a+8)(-3a-8)
(x+7y)(x-7y)(7+5b)(7-5b)
(7x+3y)(7x-3y)(9+y)(-9+y)
(t+5)(t-5)-(t-6)(t-7)(t+2)(t-2)+(3t+4)(2t-3)
(x+8)(x-8)502×498
(y+4)(y-4)(8a+2b)(8a-2b)
(x+y)(x-y)(2+b)(2-b)
(-x+5y)(-x-5y)(6+5y)(-6+5y)
(t+5)(t-5)-(t+9)(t+9)(9t+2)(9t-2)+(4t+1)(3t-3)
(b+10)(b-10)502×498
(t+10)(t-10)(a+5)(a-5)
(6x+y)(6x-y)(7+3b)(7-3b)
(x+3y)(x-3y)(3x+8y)(-3x+8y)
(b+1)(b-1)-(b-9)(b-8)(t+2)(t-2)-(3t-7)(3t+3)
(s+7)(s-7)803×797
(s+5)(s-5)(-a+b)(-a-b)
(x+6y)(x-6y)(10+5b)(10-5b)
(-x+y)(-x-y)(2x+9y)(-2x+9y)
(a+10)(a-10)-(a+6)(a-9)(9b+2)(9b-2)-(4b-2)(4b+2)
(t+10)(t-10)504×496
(9x+4)(9x-4)(8a+b)(8a-b)
(7x+y)(7x-y)(a+b)(a-b)
(5x+6y)(5x-6y)(x+y)(-x+y)
(c+7)(c-7)+(c-7)(c+5)(y+10)(y-10)+(4y-9)(4y+7)
(s+1)(s-1)91×89
(8c+8)(8c-8)(-a+3b)(-a-3b)
(9x+y)(9x-y)(1+b)(1-b)
(x+2y)(x-2y)(8+y)(-8+y)
(a+10)(a-10)+(a+4)(a+2)(9a+4)(9a-4)-(2a+2)(2a-1)
(s+8)(s-8)93×87
(y+8)(y-8)(9a+2b)(9a-2b)
(7x+7y)(7x-7y)(10+5b)(10-5b)
(x+3y)(x-3y)(4+y)(-4+y)
(y+6)(y-6)+(y+7)(y-7)(a+3)(a-3)-(2a-5)(2a-6)
(b+2)(b-2)703×697
(b+3)(b-3)(a+5)(a-5)
(8x+y)(8x-y)(9a+4b)(9a-4b)
(8x+7y)(8x-7y)(3+9y)(-3+9y)
(a+8)(a-8)+(a-2)(a-9)(8x+10)(8x-10)+(2x-9)(2x+1)
(t+6)(t-6)804×796
(s+7)(s-7)(-a+7)(-a-7)
(x+3y)(x-3y)(4+9b)(4-9b)
(x+4y)(x-4y)(7+y)(-7+y)
(s+4)(s-4)-(s-5)(s+9)(8y+9)(8y-9)-(4y-4)(3y-10)
(s+7)(s-7)94×86
(7t+3)(7t-3)(-a+6)(-a-6)
(x+y)(x-y)(5a+3b)(5a-3b)
(-x+y)(-x-y)(3+y)(-3+y)
(s+5)(s-5)-(s-5)(s-5)(7x+2)(7x-2)-(3x+6)(3x+5)
(t+6)(t-6)72×68
(c+1)(c-1)(-9a+4b)(-9a-4b)
(x+5y)(x-5y)(6a+6b)(6a-6b)
(7x+y)(7x-y)(x+y)(-x+y)
(t+3)(t-3)+(t+4)(t+2)(y+5)(y-5)+(3y+3)(4y+3)
(a+4)(a-4)902×898
(9a+1)(9a-1)(a+b)(a-b)
(6x+y)(6x-y)(10+3b)(10-3b)
(-x+4y)(-x-4y)(6+y)(-6+y)
(b+8)(b-8)+(b+8)(b+3)(b+10)(b-10)+(2b+3)(3b+4)
(x+7)(x-7)62×58
(2a+4)(2a-4)(a+b)(a-b)
(6x+2y)(6x-2y)(6a+b)(6a-b)
(-8x+y)(-8x-y)(3x+y)(-3x+y)
(b+9)(b-9)-(b-4)(b+2)(t+7)(t-7)+(3t+6)(3t-5)
(a+2)(a-2)205×195
(c+10)(c-10)(-a+b)(-a-b)
(x+8y)(x-8y)(a+b)(a-b)
(9x+y)(9x-y)(x+6y)(-x+6y)
(a+5)(a-5)+(a+8)(a-2)(y+10)(y-10)-(2y+10)(4y-7)
(t+3)(t-3)202×198
(4y+10)(4y-10)(a+b)(a-b)
(9x+y)(9x-y)(a+6b)(a-6b)
(-2x+y)(-2x-y)(1+y)(-1+y)
(c+7)(c-7)-(c+1)(c-6)(x+7)(x-7)+(4x+10)(3x+5)
(a+2)(a-2)702×698
(a+5)(a-5)(8a+9b)(8a-9b)
(6x+y)(6x-y)(7+7b)(7-7b)
(4x+4y)(4x-4y)(6+4y)(-6+4y)
(b+5)(b-5)-(b+8)(b+1)(9c+5)(9c-5)-(4c+2)(3c+9)
(a+2)(a-2)702×698
(7x+5)(7x-5)(-a+b)(-a-b)
(8x+y)(8x-y)(a+5b)(a-5b)
(-x+8y)(-x-8y)(6x+6y)(-6x+6y)
(b+10)(b-10)+(b-3)(b-9)(7y+5)(7y-5)+(3y-8)(2y+2)
(t+9)(t-9)33×27
(c+10)(c-10)(-a+1)(-a-1)
(x+y)(x-y)(3+8b)(3-8b)
(-x+9y)(-x-9y)(3+9y)(-3+9y)
(t+4)(t-4)+(t+2)(t-2)(6c+2)(6c-2)+(2c+8)(3c+2)
(y+8)(y-8)404×396
(x+9)(x-9)(-8a+3)(-8a-3)
(x+y)(x-y)(9a+b)(9a-b)
(x+2y)(x-2y)(8+y)(-8+y)
(s+5)(s-5)+(s-7)(s+3)(a+4)(a-4)-(3a-6)(4a+1)
(a+10)(a-10)203×197
(c+1)(c-1)(a+4b)(a-4b)
(8x+y)(8x-y)(5a+6b)(5a-6b)
(4x+8y)(4x-8y)(9+3y)(-9+3y)
(c+8)(c-8)+(c+8)(c-8)(3c+9)(3c-9)-(2c+10)(4c+4)
(c+2)(c-2)72×68
(7b+10)(7b-10)(-8a+b)(-8a-b)
(8x+y)(8x-y)(2a+b)(2a-b)
(-7x+4y)(-7x-4y)(5+y)(-5+y)
(x+8)(x-8)+(x+5)(x+6)(c+7)(c-7)-(2c-5)(3c+4)
(x+9)(x-9)301×299
(5y+8)(5y-8)(2a+3)(2a-3)
(8x+y)(8x-y)(a+4b)(a-4b)
(7x+y)(7x-y)(8x+y)(-8x+y)
(x+8)(x-8)-(x+3)(x+1)(7t+1)(7t-1)+(3t-2)(4t+9)
(x+8)(x-8)43×37
(x+9)(x-9)(7a+5b)(7a-5b)
(x+y)(x-y)(9+7b)(9-7b)
(x+2y)(x-2y)(x+y)(-x+y)
(s+9)(s-9)-(s+2)(s-5)(s+2)(s-2)-(3s-5)(4s-3)
(a+2)(a-2)105×95
(4s+1)(4s-1)(6a+8)(6a-8)
(x+7y)(x-7y)(a+b)(a-b)
(x+y)(x-y)(4+y)(-4+y)
(b+10)(b-10)-(b+6)(b-3)(t+4)(t-4)-(2t+9)(2t-6)
(c+8)(c-8)95×85
(8c+7)(8c-7)(3a+4)(3a-4)
(5x+2y)(5x-2y)(a+b)(a-b)
(-9x+y)(-9x-y)(x+y)(-x+y)
(a+4)(a-4)-(a-7)(a-8)(a+5)(a-5)+(2a-4)(2a+5)
(x+6)(x-6)32×28
(2x+7)(2x-7)(-a+8b)(-a-8b)
(x+8y)(x-8y)(8+b)(8-b)
(-x+y)(-x-y)(x+9y)(-x+9y)
(b+10)(b-10)-(b+5)(b-8)(2y+6)(2y-6)+(4y-2)(3y+1)
(y+4)(y-4)31×29
(s+3)(s-3)(8a+b)(8a-b)
(x+y)(x-y)(9a+b)(9a-b)
(-3x+y)(-3x-y)(4+5y)(-4+5y)
(b+10)(b-10)-(b+9)(b-2)(x+8)(x-8)+(4x+9)(2x+5)
(t+3)(t-3)104×96
(a+5)(a-5)(a+4)(a-4)
(7x+y)(7x-y)(a+6b)(a-6b)
(9x+3y)(9x-3y)(7+6y)(-7+6y)
(b+5)(b-5)-(b-2)(b-7)(4y+8)(4y-8)-(3y+3)(2y+10)
(x+9)(x-9)52×48
(t+5)(t-5)(-5a+8)(-5a-8)
(6x+9y)(6x-9y)(5a+b)(5a-b)
(x+y)(x-y)(6x+4y)(-6x+4y)
(a+10)(a-10)-(a+9)(a+9)(9t+7)(9t-7)+(4t-9)(2t-5)
(c+6)(c-6)102×98
(5a+7)(5a-7)(-a+4b)(-a-4b)
(3x+y)(3x-y)(a+6b)(a-6b)
(-4x+y)(-4x-y)(x+7y)(-x+7y)
(b+2)(b-2)+(b+5)(b+4)(t+1)(t-1)-(3t-3)(4t+6)
(b+10)(b-10)83×77
(9c+6)(9c-6)(2a+9)(2a-9)
(x+y)(x-y)(a+2b)(a-2b)
(5x+y)(5x-y)(2+7y)(-2+7y)
(x+4)(x-4)-(x-9)(x-9)(t+2)(t-2)-(4t+9)(4t+4)
(b+8)(b-8)51×49
(3s+3)(3s-3)(-9a+8b)(-9a-8b)
(5x+y)(5x-y)(9+3b)(9-3b)
(x+y)(x-y)(4+y)(-4+y)
(x+4)(x-4)+(x-1)(x-7)(y+10)(y-10)-(3y+1)(3y+9)
(b+1)(b-1)51×49
(5y+5)(5y-5)(2a+b)(2a-b)
(x+6y)(x-6y)(9a+3b)(9a-3b)
(x+y)(x-y)(3x+7y)(-3x+7y)
(a+4)(a-4)+(a-8)(a+8)(8y+5)(8y-5)+(3y-7)(3y+2)
(c+1)(c-1)73×67
(y+1)(y-1)(a+b)(a-b)
(x+y)(x-y)(a+3b)(a-3b)
(-2x+y)(-2x-y)(2x+y)(-2x+y)
(c+3)(c-3)-(c+4)(c-1)(3s+6)(3s-6)-(3s+10)(3s+1)
(y+9)(y-9)34×26
(b+5)(b-5)(-3a+8)(-3a-8)
(x+y)(x-y)(6+b)(6-b)
(-x+y)(-x-y)(9x+y)(-9x+y)
(s+7)(s-7)-(s-1)(s+3)(7x+9)(7x-9)-(4x+4)(3x+4)
(y+10)(y-10)55×45
(8t+7)(8t-7)(6a+b)(6a-b)
(x+y)(x-y)(8+8b)(8-8b)
(-x+y)(-x-y)(2+y)(-2+y)
(a+9)(a-9)-(a+2)(a-7)(5c+1)(5c-1)+(4c+8)(2c-10)
(c+5)(c-5)75×65
(s+5)(s-5)(-a+7)(-a-7)
(x+y)(x-y)(a+5b)(a-5b)
(3x+y)(3x-y)(8+6y)(-8+6y)
(c+3)(c-3)+(c+6)(c+5)(x+8)(x-8)-(3x-2)(4x+10)
(y+7)(y-7)44×36
(2x+10)(2x-10)(-a+b)(-a-b)
(x+y)(x-y)(8+6b)(8-6b)
(x+3y)(x-3y)(8+5y)(-8+5y)
(s+5)(s-5)-(s+8)(s-3)(x+7)(x-7)+(4x-6)(2x-5)
(x+4)(x-4)505×495
(a+6)(a-6)(-2a+4)(-2a-4)
(x+y)(x-y)(9+b)(9-b)
(-x+6y)(-x-6y)(x+4y)(-x+4y)
(a+6)(a-6)-(a+1)(a-3)(a+4)(a-4)+(2a+5)(3a+5)
(t+1)(t-1)71×69
(9b+5)(9b-5)(5a+2b)(5a-2b)
(x+2y)(x-2y)(2+b)(2-b)
(8x+y)(8x-y)(3+y)(-3+y)
(t+10)(t-10)+(t+2)(t+5)(4s+6)(4s-6)+(4s-9)(4s+8)
(a+8)(a-8)502×498
(y+2)(y-2)(-3a+b)(-3a-b)
(8x+6y)(8x-6y)(1+b)(1-b)
(-5x+y)(-5x-y)(7x+7y)(-7x+7y)
(y+9)(y-9)+(y-7)(y-8)(3c+8)(3c-8)+(3c-7)(3c-9)
(t+6)(t-6)8