人教版八年级数学上册乘法公式综合练习题精选50.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50
(c+7)(c-7)803×797
(4x+9)(4x-9)(-a+6)(-a-6)
(x+y)(x-y)(a+6b)(a-6b)
(-9x+y)(-9x-y)(3+y)(-3+y)
(x+7)(x-7)-(x-2)(x-4)(8s+5)(8s-5)-(3s+7)(2s-9)
(b+7)(b-7)95×85
(b+8)(b-8)(5a+8b)(5a-8b)
(9x+y)(9x-y)(1+9b)(1-9b)
(x+y)(x-y)(x+y)(-x+y)
(x+5)(x-5)+(x+8)(x-8)(c+2)(c-2)+(4c-8)(4c-1)
(t+2)(t-2)34×26
(8t+10)(8t-10)(6a+b)(6a-b)
(6x+3y)(6x-3y)(2a+2b)(2a-2b)
(-4x+y)(-4x-y)(5x+8y)(-5x+8y)
(c+10)(c-10)+(c+8)(c+9)(5y+6)(5y-6)+(3y-4)(2y+6)
(c+3)(c-3)302×298
(s+3)(s-3)(-a+b)(-a-b)
(x+y)(x-y)(5+b)(5-b)
(x+8y)(x-8y)(4+y)(-4+y)
(y+5)(y-5)-(y-3)(y+2)(9c+9)(9c-9)-(2c-6)(2c-8)
(b+1)(b-1)85×75
(s+6)(s-6)(-8a+4)(-8a-4)
(x+4y)(x-4y)(3+5b)(3-5b)
(7x+y)(7x-y)(9x+y)(-9x+y)
(a+1)(a-1)-(a+6)(a-5)(y+8)(y-8)+(4y+10)(3y-9)
(y+2)(y-2)504×496
(5y+6)(5y-6)(a+1)(a-1)
(9x+y)(9x-y)(1+2b)(1-2b)
(-x+8y)(-x-8y)(10+y)(-10+y)
(t+3)(t-3)+(t+5)(t-8)(7t+7)(7t-7)+(2t+10)(4t+8)
(a+4)(a-4)205×195
(t+9)(t-9)(-2a+7b)(-2a-7b)
(x+y)(x-y)(4a+b)(4a-b)
(7x+5y)(7x-5y)(7x+7y)(-7x+7y)
(s+1)(s-1)+(s-9)(s-3)(9b+5)(9b-5)-(4b-3)(2b-8)
(y+7)(y-7)84×76
(x+3)(x-3)(-6a+2)(-6a-2)
(x+y)(x-y)(2+b)(2-b)
(-2x+y)(-2x-y)(9+y)(-9+y)
(b+3)(b-3)-(b+8)(b-4)(4c+9)(4c-9)-(4c-1)(3c+6)
(t+3)(t-3)603×597
(8y+1)(8y-1)(-2a+b)(-2a-b)
(x+y)(x-y)(6+8b)(6-8b)
(-5x+y)(-5x-y)(x+8y)(-x+8y)
(x+7)(x-7)-(x+6)(x-9)(3b+3)(3b-3)+(4b+5)(3b-2)
(s+10)(s-10)64×56
(a+1)(a-1)(-a+b)(-a-b)
(x+7y)(x-7y)(5a+2b)(5a-2b)
(8x+7y)(8x-7y)(7+y)(-7+y)
(c+3)(c-3)+(c+9)(c-3)(t+5)(t-5)+(2t-5)(4t+5)
(t+6)(t-6)404×396
(x+5)(x-5)(-3a+b)(-3a-b)
(x+y)(x-y)(a+b)(a-b)
(-x+y)(-x-y)(6+y)(-6+y)
(x+10)(x-10)+(x-9)(x+7)(7a+5)(7a-5)-(2a-8)(3a-2)
(s+5)(s-5)404×396
(5b+10)(5b-10)(-a+5b)(-a-5b)
(x+y)(x-y)(8a+6b)(8a-6b)
(-x+7y)(-x-7y)(9+2y)(-9+2y)
(t+3)(t-3)+(t-3)(t-9)(y+7)(y-7)-(2y-7)(2y+2)
(c+10)(c-10)201×199
(6t+7)(6t-7)(a+1)(a-1)
(4x+y)(4x-y)(2+9b)(2-9b)
(x+2y)(x-2y)(4x+2y)(-4x+2y)
(a+3)(a-3)-(a-3)(a-4)(t+10)(t-10)-(4t-7)(3t+5)
(x+8)(x-8)74×66
(s+5)(s-5)(6a+7)(6a-7)
(2x+y)(2x-y)(4+b)(4-b)
(x+6y)(x-6y)(x+y)(-x+y)
(y+1)(y-1)-(y+4)(y-3)(8c+9)(8c-9)+(3c+3)(3c+10)
(a+4)(a-4)73×67
(3a+5)(3a-5)(-a+b)(-a-b)
(x+7y)(x-7y)(a+8b)(a-8b)
(-x+y)(-x-y)(4+y)(-4+y)
(c+7)(c-7)-(c+6)(c-2)(7a+7)(7a-7)+(4a+3)(3a-2)
(y+10)(y-10)83×77
(2a+1)(2a-1)(-3a+5)(-3a-5)
(x+3y)(x-3y)(2a+7b)(2a-7b)
(-8x+y)(-8x-y)(1+y)(-1+y)
(y+4)(y-4)+(y+8)(y+3)(5a+5)(5a-5)+(2a-3)(3a-1)
(b+5)(b-5)62×58
(a+1)(a-1)(8a+b)(8a-b)
(5x+y)(5x-y)(3a+6b)(3a-6b)
(-x+y)(-x-y)(9+8y)(-9+8y)
(c+10)(c-10)+(c+7)(c-5)(10y+1)(10y-1)+(4y+3)(2y+6)
(x+3)(x-3)102×98
(b+10)(b-10)(-4a+7)(-4a-7)
(x+8y)(x-8y)(a+6b)(a-6b)
(x+4y)(x-4y)(x+y)(-x+y)
(b+5)(b-5)+(b+2)(b-5)(3b+5)(3b-5)-(4b-3)(4b-10)
(y+7)(y-7)42×38
(b+2)(b-2)(-4a+8b)(-4a-8b)
(8x+y)(8x-y)(5+9b)(5-9b)
(-6x+4y)(-6x-4y)(3x+2y)(-3x+2y)
(b+6)(b-6)+(b-7)(b+2)(y+5)(y-5)+(2y+1)(4y-1)
(c+8)(c-8)35×25
(2a+8)(2a-8)(a+b)(a-b)
(2x+y)(2x-y)(4+6b)(4-6b)
(4x+y)(4x-y)(9x+9y)(-9x+9y)
(y+3)(y-3)+(y+4)(y+1)(4a+3)(4a-3)+(4a+7)(4a+10)
(c+4)(c-4)104×96
(y+5)(y-5)(5a+9b)(5a-9b)
(3x+5y)(3x-5y)(a+b)(a-b)
(x+y)(x-y)(4+y)(-4+y)
(c+4)(c-4)-(c+8)(c+3)(a+7)(a-7)-(3a+5)(2a-2)
(t+10)(t-10)202×198
(s+5)(s-5)(-a+2b)(-a-2b)
(3x+y)(3x-y)(5+b)(5-b)
(-x+2y)(-x-2y)(x+5y)(-x+5y)
(c+7)(c-7)+(c+1)(c-7)(4t+10)(4t-10)+(2t+7)(2t+1)
(b+8)(b-8)62×58
(9c+2)(9c-2)(6a+5b)(6a-5b)
(3x+9y)(3x-9y)(3a+b)(3a-b)
(-x+y)(-x-y)(10+9y)(-10+9y)
(t+7)(t-7)+(t+1)(t-5)(9b+8)(9b-8)+(2b+10)(2b-3)
(x+8)(x-8)63×57
(b+3)(b-3)(a+3)(a-3)
(x+y)(x-y)(9+b)(9-b)
(x+3y)(x-3y)(1+y)(-1+y)
(t+10)(t-10)+(t+6)(t-4)(a+2)(a-2)-(3a-9)(2a+3)
(b+10)(b-10)203×197
(3c+9)(3c-9)(-7a+7)(-7a-7)
(x+y)(x-y)(7a+b)(7a-b)
(-5x+9y)(-5x-9y)(x+3y)(-x+3y)
(y+5)(y-5)+(y+1)(y+9)(10c+8)(10c-8)+(3c-5)(4c-3)
(x+8)(x-8)45×35
(3t+8)(3t-8)(-5a+3)(-5a-3)
(7x+y)(7x-y)(4+b)(4-b)
(-5x+9y)(-5x-9y)(6+y)(-6+y)
(t+3)(t-3)-(t-6)(t+6)(8y+8)(8y-8)-(3y-5)(4y+6)
(b+5)(b-5)65×55
(a+8)(a-8)(5a+b)(5a-b)
(x+y)(x-y)(9+b)(9-b)
(-5x+6y)(-5x-6y)(7+y)(-7+y)
(a+2)(a-2)-(a+8)(a-8)(c+9)(c-9)-(4c+6)(3c+10)
(y+1)(y-1)401×399
(3a+2)(3a-2)(5a+3b)(5a-3b)
(9x+y)(9x-y)(a+9b)(a-9b)
(-9x+6y)(-9x-6y)(5+y)(-5+y)
(y+6)(y-6)-(y-8)(y-7)(s+4)(s-4)+(2s-4)(4s+1)
(x+7)(x-7)604×596
(9y+9)(9y-9)(8a+b)(8a-b)
(x+6y)(x-6y)(9+b)(9-b)
(9x+8y)(9x-8y)(8x+4y)(-8x+4y)
(y+9)(y-9)-(y-9)(y+8)(2y+6)(2y-6)-(3y-2)(4y+2)
(s+1)(s-1)83×77
(7a+2)(7a-2)(6a+8)(6a-8)
(x+7y)(x-7y)(4+9b)(4-9b)
(9x+y)(9x-y)(x+y)(-x+y)
(t+2)(t-2)-(t+6)(t-1)(x+2)(x-2)-(2x+3)(4x-9)
(y+8)(y-8)701×699
(6a+10)(6a-10)(-a+b)(-a-b)
(x+2y)(x-2y)(6+8b)(6-8b)
(-x+y)(-x-y)(x+6y)(-x+6y)
(t+3)(t-3)+(t+8)(t+5)(9y+2)(9y-2)+(2y-5)(2y-10)
(b+10)(b-10)505×495
(4y+8)(4y-8)(7a+1)(7a-1)
(6x+5y)(6x-5y)(3+9b)(3-9b)
(-x+y)(-x-y)(4+y)(-4+y)
(c+1)(c-1)-(c-3)(c+6)(8x+5)(8x-5)-(4x+8)(2x+1)
(s+9)(s-9)703×697
(t+1)(t-1)(9a+8)(9a-8)
(x+y)(x-y)(2a+2b)(2a-2b)
(-5x+y)(-5x-y)(x+4y)(-x+4y)
(a+3)(a-3)-(a-6)(a-2)(x+5)(x-5)-(3x-9)(3x+8)
(x+5)(x-5)401×399
(s+6)(s-6)(-a+7b)(-a-7b)
(x+y)(x-y)(a+b)(a-b)
(-6x+y)(-6x-y)(6x+y)(-6x+y)
(y+4)(y-4)-(y+7)(y-3)(t+7)(t-7)-(3t-6)(2t+9)
(y+7)(y-7)71×69
(9x+8)(9x-8)(-7a+6)(-7a-6)
(2x+4y)(2x-4y)(3+2b)(3-2b)
(-6x+5y)(-6x-5y)(3x+4y)(-3x+4y)
(x+10)(x-10)-(x+5)(x+3)(7c+10)(7c-10)+(4c-1)(2c-10)
(s+3)(s-3)904×896
(a+5)(a-5)(6a+8b)(6a-8b)
(2x+6y)(2x-6y)(3+b)(3-b)
(-6x+6y)(-6x-6y)(x+8y)(-x+8y)
(y+6)(y-6)+(y-6)(y+9)(c+7)(c-7)+(4c+3)(2c+2)
(x+4)(x-4)704×696
(8c+3)(8c-3)(a+9)(a-9)
(x+5y)(x-5y)(a+b)(a-b)
(-x+y)(-x-y)(2x+y)(-2x+y)
(c+4)(c-4)+(c+8)(c+1)(y+7)(y-7)+(3y+9)(2y+5)
(t+3)(t-3)305×295
(3s+9)(3s-9)(-a+8)(-a-8)
(5x+6y)(5x-6y)(1+8b)(1-8b)
(5x+6y)(5x-6y)(7x+y)(-7x+y)
(t+8)(t-8)-(t-8)(t-3)(a+5)(a-5)-(2a-10)(4a+6)
(a+10)(a-10)802×798
(8x+9)(8x-9)(-8a+b)(-8a-b)
(5x+7y)(5x-7y)(a+9b)(a-9b)
(-6x+9y)(-6x-9y)(4+7y)(-4+7y)
(y+10)(y-10)-(y+6)(y-6)(x+3)(x-3)+(2x+6)(3x+7)
(y+3)(y-3)94×86
(b+6)(b-6)(6a+5)(6a-5)
(x+9y)(x-9y)(2+b)(2-b)
(-8x+2y)(-8x-2y)(8x+y)(-8x+y)
(s+2)(s-2)-(s+5)(s+5)(6t+1)(6t-1)-(2t-1)(3t+1)
(a+9)(a-9)205×195
(y+6)(y-6)(-6a+7)(-6a-7)
(x+6y)(x-6y)(6a+5b)(6a-5b)
(x+y)(x-y)(5x+y)(-5x+y)
(a+2)(a-2)-(a-5)(a+4)(9s+10)(9s-10)+(4s-8)(3s-4)
(y+6)(y-6)802×798
(y+10)(y-10)(-a+b)(-a-b)
(2x+6y)(2x-6y)(a+3b)(a-3b)
(x+y)(x-y)(8+5y)(-8+5y)
(t+3)(t-3)+(t+5)(t-4)(4x+7)(4x-7)-(2x-5)(2x+4)
(b+8)(b-8)201×199
(a+2)(a-2)(-a+4)(-a-4)
(x+y)(x-y)(2a+b)(2a-b)
(5x+y)(5x-y)(7x+y)(-7x+y)
(x+5)(x-5)-(x-5)(x+1)(9y+8)(9y-8)-(2y+6)(3y+4)
(b+8)(b-8)33×27
(a+4)(a-4)(-9a+b)(-9a-b)
(8x+y)(8x-y)(a+b)(a-b)
(x+y)(x-y)(x+2y)(-x+2y)
(t+5)(t-5)+(t-7)(t+9)(6b+7)(6b-7)+(2b+6)(3b-3)
(x+6)(x-6)51×49
(2s+6)(2s-6)(-a+8)(-a-8)
(x+7y)(x-7y)(5a+5b)(5a-5b)
(-8x+y)(-8x-y)(5+6y)(-5+6y)
(c+7)(c-7)-(c-3)(c-4)(b+7)(b-7)-(2b+5)(2b+3)
(y+1)(y-1)303×297
(6x+10)(6x-10)(7a+b)(7a-b)
(9x+y)(9x-y)(a+b)(a-b)
(8x+6y)(8x-6y)(6+y)(-6+y)
(x+9)(x-9)-(x-9)(x+7)(c+5)(c-5)+(2c-7)(4c-8)
(y+2)(y-2)34×26
(3t+8)(3t-8)(6a+9)(6a-9)
(x+y)(x-y)(6+8b)(6-8b)
(2x+3y)(2x-3y)(x+y)(-x+y)
(a+4)(a-4)+(a-1)(a-8)(t+9)(t-9)-(2t+10)(4t-3)
(t+6)(t-6)302×298
(a+6)(a-6)(a+4b)(a-4b)
(4x+9y)(4x-9y)(4a+b)(4a-b)
(x+4y)(x-4y)(3+5y)(-3+5y)
(x+1)(x-1)-(x-3)(x-5)(s+5)(s-5)-(3s+2)(4s-9)
(a+9)(a-9)41×39
(7x+8)(7x-8)(-a+4b)(-a-4b)
(6x+5y)(6x-5y)(7+9b)(7-9b)
(8x+7y)(8x-7y)(3x+y)(-3x+y)
(a+4)(a-4)+(a-5)(a-4)(4y+4)(4y-4)+(3y+6)(3y-2)
(a+7)(a-7)95×85
(6s+5)(6s-5)(-a+7)(-a-7)
(x+y)(x-y)(4+b)(4-b)
(-x+6y)(-x-6y)(7x+y)(-7x+y)
(b+8)(b-8)+(b+7)(b-8)(s+3)(s-3)-(2s-2)(2s+4)
(x+7)(x-7)104×96
(x+1)(x-1)(-a+6b)(-a-6b)
(x+y)(x-y)(9a+6b)(9a-6b)
(-3x+y)(-3x-y)(1+y)(-1+y)
(c+6)(c-6)+(c+3)(c-2)(x+3)(x-3)-(3x+3)(3x-9)
(x+1)(x-1)85×75
(a+7)(a-7)(-a+1)(-a-1)
(3x+y)(3x-y)(8a+b)(8a-b)
(3x+7y)(3x-7y)(8+3y)(-8+3y)
(a+3)(a-3)+(a-5)(a+9)(b+8)(b-8)-(2b+10)(4b-10)
(b+10)(b-10)702×698
(8t+10)(8t-10)(a+2b)(a-2b)
(7x+4y)(7x-4y)(a+6b)(a-6b)
(-7x+y)(-7x-y)(9x+y)(-9x+y)
(y+2)(y-2)+(y+7)(y+8)(s+5)(s-5)+(2s+2)(2s+3)
(y+10)(y-10)305×295
(5s+3)(5s-3)(a+8)(a-8)
(2x+y)(2x-y)(a+b)(a-b)
(-x+4y)(-x-4y)(10+7y)(-10+7y)
(y+9)(y-9)-(y-9)(y+2)(a+7)(a-7)-(2a-5)(4a+1)
(s+1)(s-1)55×45
(c+9)(c-9)(-a+2)(-a-2)
(x+3y)(x-3y)(3+b)(3-b)
(x+y)(x-y)(5x+y)(-5x+y)
(t+4)(t-4)+(t+5)(t+4)(9a+7)(9a-7)+(4a+1)(3a+7)
(b+6)(b-6)75×65
(6s+5)(6s-5)(8a+9b)(8a-9b)
(2x+y)(2x-y)(4a+8b)(4a-8b)
(-x+7y)(-x-7y)(4x+y)(-4x+y)
(b+8)(b-8)+(b+9)(b+9)(y+8)(y-8)-(2y+5)(3y-6)
(s+9)(s-9)402×398
(2s+1)(2s-1)(8a+8b)(8a-8b)
(x+y)(x-y)(3+b)(3-b)
(x+2y)(x-2y)(7x+y)(-7x+y)
(s+4)(s-4)+(s-1)(s+8)