人教版八年级数学上册乘法公式综合练习题精选70.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70.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70
(x+4)(x-4)303×297
(7c+1)(7c-1)(-8a+b)(-8a-b)
(x+8y)(x-8y)(10+6b)(10-6b)
(x+6y)(x-6y)(x+3y)(-x+3y)
(a+6)(a-6)-(a-8)(a-3)(10x+6)(10x-6)+(2x-6)(2x+9)
(t+7)(t-7)94×86
(t+9)(t-9)(-a+4b)(-a-4b)
(9x+3y)(9x-3y)(1+8b)(1-8b)
(-8x+7y)(-8x-7y)(9+9y)(-9+9y)
(b+8)(b-8)-(b+2)(b+4)(5c+10)(5c-10)-(2c-8)(4c-10)
(t+6)(t-6)41×39
(x+9)(x-9)(a+7)(a-7)
(3x+8y)(3x-8y)(7a+b)(7a-b)
(-5x+y)(-5x-y)(3+8y)(-3+8y)
(c+3)(c-3)-(c+5)(c+2)(4b+4)(4b-4)-(4b+8)(3b+9)
(a+6)(a-6)74×66
(c+2)(c-2)(a+4b)(a-4b)
(x+y)(x-y)(a+b)(a-b)
(-x+y)(-x-y)(x+y)(-x+y)
(x+8)(x-8)+(x+7)(x-5)(7t+1)(7t-1)+(2t+8)(3t-10)
(x+10)(x-10)603×597
(8b+4)(8b-4)(8a+b)(8a-b)
(7x+6y)(7x-6y)(a+b)(a-b)
(5x+y)(5x-y)(6x+y)(-6x+y)
(x+3)(x-3)+(x-7)(x-5)(x+4)(x-4)-(2x-4)(4x+8)
(t+8)(t-8)303×297
(c+9)(c-9)(4a+2b)(4a-2b)
(x+3y)(x-3y)(9a+b)(9a-b)
(-7x+y)(-7x-y)(4+y)(-4+y)
(c+3)(c-3)-(c-2)(c+6)(8b+5)(8b-5)-(3b-1)(3b+7)
(b+6)(b-6)95×85
(9y+10)(9y-10)(-6a+9)(-6a-9)
(4x+y)(4x-y)(a+b)(a-b)
(-2x+y)(-2x-y)(6+y)(-6+y)
(s+6)(s-6)+(s-7)(s-7)(5t+8)(5t-8)+(4t+9)(2t-1)
(s+5)(s-5)704×696
(x+4)(x-4)(-6a+3)(-6a-3)
(x+5y)(x-5y)(3a+b)(3a-b)
(3x+y)(3x-y)(9+7y)(-9+7y)
(s+1)(s-1)+(s-5)(s-6)(t+7)(t-7)+(4t-8)(4t+7)
(y+8)(y-8)33×27
(8a+3)(8a-3)(6a+5)(6a-5)
(x+y)(x-y)(2+6b)(2-6b)
(x+8y)(x-8y)(2x+y)(-2x+y)
(b+4)(b-4)+(b+2)(b-8)(8a+2)(8a-2)-(3a-6)(4a-4)
(s+5)(s-5)101×99
(5c+7)(5c-7)(a+5)(a-5)
(8x+y)(8x-y)(6+2b)(6-2b)
(8x+y)(8x-y)(5x+4y)(-5x+4y)
(y+9)(y-9)-(y-5)(y+6)(3b+3)(3b-3)+(3b-10)(3b-4)
(a+1)(a-1)805×795
(4c+10)(4c-10)(a+4b)(a-4b)
(5x+5y)(5x-5y)(1+9b)(1-9b)
(x+2y)(x-2y)(2x+y)(-2x+y)
(x+2)(x-2)-(x-5)(x-8)(t+10)(t-10)-(4t-6)(2t+3)
(x+6)(x-6)204×196
(y+7)(y-7)(-9a+b)(-9a-b)
(x+y)(x-y)(4+4b)(4-4b)
(x+y)(x-y)(9x+2y)(-9x+2y)
(y+8)(y-8)-(y+6)(y+2)(6a+10)(6a-10)+(2a+8)(2a+7)
(y+2)(y-2)91×89
(s+9)(s-9)(-a+3b)(-a-3b)
(6x+y)(6x-y)(8a+b)(8a-b)
(x+2y)(x-2y)(3x+6y)(-3x+6y)
(x+3)(x-3)-(x+6)(x+7)(7y+10)(7y-10)-(2y-7)(4y-7)
(s+6)(s-6)203×197
(s+4)(s-4)(-6a+9)(-6a-9)
(7x+3y)(7x-3y)(2a+8b)(2a-8b)
(-x+y)(-x-y)(x+y)(-x+y)
(s+5)(s-5)-(s-3)(s-9)(7a+5)(7a-5)-(3a+4)(3a+2)
(a+10)(a-10)601×599
(s+8)(s-8)(-a+b)(-a-b)
(9x+y)(9x-y)(a+7b)(a-7b)
(x+8y)(x-8y)(4+9y)(-4+9y)
(a+1)(a-1)+(a+3)(a-5)(7t+8)(7t-8)-(3t-2)(2t+8)
(a+7)(a-7)404×396
(2y+3)(2y-3)(-4a+5)(-4a-5)
(x+3y)(x-3y)(6a+b)(6a-b)
(x+9y)(x-9y)(8x+y)(-8x+y)
(x+5)(x-5)+(x-4)(x-3)(8c+5)(8c-5)+(3c+9)(4c-2)
(c+3)(c-3)403×397
(5y+6)(5y-6)(a+9)(a-9)
(8x+y)(8x-y)(7+b)(7-b)
(-9x+8y)(-9x-8y)(x+7y)(-x+7y)
(y+7)(y-7)-(y+6)(y+3)(c+8)(c-8)-(4c+2)(2c-5)
(c+9)(c-9)33×27
(3b+6)(3b-6)(-6a+b)(-6a-b)
(8x+2y)(8x-2y)(3+2b)(3-2b)
(-x+y)(-x-y)(5+y)(-5+y)
(x+2)(x-2)-(x+8)(x-4)(y+7)(y-7)-(3y+10)(2y+4)
(b+7)(b-7)701×699
(x+9)(x-9)(7a+3)(7a-3)
(x+y)(x-y)(9a+2b)(9a-2b)
(-x+y)(-x-y)(8+2y)(-8+2y)
(s+3)(s-3)+(s+3)(s+7)(c+2)(c-2)+(3c-1)(3c-10)
(y+4)(y-4)72×68
(8a+1)(8a-1)(4a+9)(4a-9)
(x+y)(x-y)(4+6b)(4-6b)
(-4x+8y)(-4x-8y)(7+y)(-7+y)
(s+8)(s-8)-(s-7)(s+9)(t+9)(t-9)-(3t-1)(3t+6)
(y+9)(y-9)42×38
(3a+3)(3a-3)(-a+b)(-a-b)
(x+y)(x-y)(5+b)(5-b)
(3x+6y)(3x-6y)(7+4y)(-7+4y)
(t+10)(t-10)+(t+8)(t-2)(b+1)(b-1)-(2b-4)(2b+1)
(b+8)(b-8)902×898
(3t+3)(3t-3)(-a+4)(-a-4)
(x+y)(x-y)(9+b)(9-b)
(x+y)(x-y)(10+y)(-10+y)
(a+6)(a-6)-(a-4)(a+9)(s+8)(s-8)+(4s+10)(2s+8)
(t+10)(t-10)83×77
(2c+10)(2c-10)(a+3b)(a-3b)
(x+y)(x-y)(6a+9b)(6a-9b)
(x+y)(x-y)(x+y)(-x+y)
(y+3)(y-3)-(y-2)(y+9)(c+4)(c-4)-(4c+7)(2c+4)
(b+7)(b-7)103×97
(7b+3)(7b-3)(-7a+9)(-7a-9)
(x+y)(x-y)(7a+6b)(7a-6b)
(x+5y)(x-5y)(9x+y)(-9x+y)
(c+9)(c-9)+(c-1)(c+6)(4y+5)(4y-5)+(3y-4)(3y-10)
(c+5)(c-5)54×46
(3s+9)(3s-9)(-6a+7)(-6a-7)
(4x+5y)(4x-5y)(1+b)(1-b)
(x+y)(x-y)(7+7y)(-7+7y)
(x+6)(x-6)+(x+1)(x+9)(3b+4)(3b-4)+(4b-2)(2b+3)
(y+1)(y-1)204×196
(2c+2)(2c-2)(-a+5)(-a-5)
(x+4y)(x-4y)(9a+4b)(9a-4b)
(2x+y)(2x-y)(6+y)(-6+y)
(a+2)(a-2)+(a-8)(a+3)(x+7)(x-7)-(4x+8)(4x-1)
(x+7)(x-7)502×498
(3x+5)(3x-5)(3a+7b)(3a-7b)
(x+9y)(x-9y)(a+b)(a-b)
(3x+y)(3x-y)(2+y)(-2+y)
(y+2)(y-2)+(y+4)(y-4)(9t+2)(9t-2)+(3t+1)(3t-6)
(y+6)(y-6)803×797
(5b+10)(5b-10)(-a+9)(-a-9)
(x+y)(x-y)(3a+b)(3a-b)
(x+y)(x-y)(6+3y)(-6+3y)
(x+4)(x-4)-(x-2)(x+1)(3c+8)(3c-8)+(4c+1)(4c+5)
(x+1)(x-1)52×48
(7b+5)(7b-5)(a+5)(a-5)
(x+y)(x-y)(8+6b)(8-6b)
(-x+y)(-x-y)(6x+3y)(-6x+3y)
(s+4)(s-4)-(s-7)(s+3)(4t+8)(4t-8)+(3t+3)(2t-10)
(x+2)(x-2)603×597
(c+5)(c-5)(-6a+7)(-6a-7)
(x+y)(x-y)(2+b)(2-b)
(9x+8y)(9x-8y)(5x+6y)(-5x+6y)
(c+7)(c-7)-(c-6)(c-5)(b+3)(b-3)+(2b+5)(3b+3)
(t+8)(t-8)45×35
(4s+2)(4s-2)(a+1)(a-1)
(x+y)(x-y)(a+b)(a-b)
(x+y)(x-y)(9x+y)(-9x+y)
(t+10)(t-10)-(t-4)(t+3)(4t+3)(4t-3)-(2t-5)(4t-5)
(t+4)(t-4)84×76
(6x+8)(6x-8)(a+b)(a-b)
(6x+8y)(6x-8y)(7a+b)(7a-b)
(-x+y)(-x-y)(2+y)(-2+y)
(b+1)(b-1)-(b+3)(b-4)(t+5)(t-5)+(2t+8)(2t+5)
(s+4)(s-4)94×86
(c+2)(c-2)(-a+3)(-a-3)
(x+8y)(x-8y)(4+9b)(4-9b)
(-2x+y)(-2x-y)(x+4y)(-x+4y)
(x+6)(x-6)+(x+9)(x-9)(3b+9)(3b-9)+(4b-1)(4b+10)
(a+7)(a-7)804×796
(a+2)(a-2)(-3a+8)(-3a-8)
(9x+y)(9x-y)(a+4b)(a-4b)
(-9x+5y)(-9x-5y)(6x+y)(-6x+y)
(y+5)(y-5)+(y-3)(y-2)(3b+7)(3b-7)-(3b-8)(2b+9)
(t+10)(t-10)33×27
(8c+4)(8c-4)(-5a+6b)(-5a-6b)
(x+3y)(x-3y)(4+7b)(4-7b)
(7x+y)(7x-y)(5+y)(-5+y)
(a+10)(a-10)+(a-9)(a-5)(t+5)(t-5)+(4t-2)(3t+4)
(b+1)(b-1)42×38
(s+2)(s-2)(7a+4)(7a-4)
(x+y)(x-y)(a+3b)(a-3b)
(x+7y)(x-7y)(1+8y)(-1+8y)
(c+7)(c-7)-(c+7)(c+9)(x+1)(x-1)-(4x+10)(3x-8)
(t+6)(t-6)45×35
(9t+2)(9t-2)(a+6)(a-6)
(x+7y)(x-7y)(a+b)(a-b)
(-6x+2y)(-6x-2y)(x+y)(-x+y)
(y+2)(y-2)+(y+3)(y-3)(5t+3)(5t-3)-(4t+3)(4t-9)
(s+5)(s-5)42×38
(3s+9)(3s-9)(-4a+6b)(-4a-6b)
(5x+3y)(5x-3y)(3+8b)(3-8b)
(6x+4y)(6x-4y)(x+y)(-x+y)
(x+9)(x-9)+(x-4)(x-9)(2t+5)(2t-5)+(4t-3)(4t-5)
(y+5)(y-5)45×35
(a+10)(a-10)(-a+5b)(-a-5b)
(8x+8y)(8x-8y)(2a+b)(2a-b)
(x+5y)(x-5y)(9+5y)(-9+5y)
(y+4)(y-4)+(y-6)(y+7)(10b+4)(10b-4)-(2b+4)(4b+1)
(t+1)(t-1)902×898
(7y+2)(7y-2)(-5a+6)(-5a-6)
(7x+y)(7x-y)(a+9b)(a-9b)
(7x+3y)(7x-3y)(8x+y)(-8x+y)
(y+7)(y-7)-(y-3)(y-4)(10c+8)(10c-8)-(2c-8)(3c-1)
(x+2)(x-2)85×75
(3x+7)(3x-7)(5a+7b)(5a-7b)
(x+y)(x-y)(a+9b)(a-9b)
(6x+y)(6x-y)(x+8y)(-x+8y)
(s+5)(s-5)-(s+4)(s-1)(5c+5)(5c-5)-(4c+8)(3c-8)
(t+7)(t-7)52×48
(7b+6)(7b-6)(-a+b)(-a-b)
(x+5y)(x-5y)(10+7b)(10-7b)
(9x+y)(9x-y)(8+y)(-8+y)
(a+1)(a-1)+(a-9)(a+5)(3a+3)(3a-3)-(2a+9)(4a-1)
(s+3)(s-3)71×69
(y+6)(y-6)(-a+b)(-a-b)
(5x+y)(5x-y)(a+b)(a-b)
(4x+y)(4x-y)(x+y)(-x+y)
(s+2)(s-2)-(s-7)(s+1)(7b+7)(7b-7)+(3b-4)(4b-1)
(a+2)(a-2)601×599
(2s+3)(2s-3)(-9a+3)(-9a-3)
(x+9y)(x-9y)(9a+b)(9a-b)
(-9x+y)(-9x-y)(x+y)(-x+y)
(t+3)(t-3)-(t+9)(t+7)(7c+6)(7c-6)-(4c+7)(3c-5)
(s+10)(s-10)33×27
(3s+10)(3s-10)(8a+6)(8a-6)
(x+2y)(x-2y)(a+8b)(a-8b)
(7x+9y)(7x-9y)(4x+y)(-4x+y)
(a+1)(a-1)+(a-8)(a-6)(s+1)(s-1)+(3s+3)(2s-7)
(c+3)(c-3)41×39
(a+7)(a-7)(a+b)(a-b)
(x+y)(x-y)(a+b)(a-b)
(9x+y)(9x-y)(8x+6y)(-8x+6y)
(y+10)(y-10)+(y-8)(y+2)(2s+1)(2s-1)+(4s+9)(4s-9)
(x+1)(x-1)64×56
(b+6)(b-6)(a+2)(a-2)
(9x+y)(9x-y)(3+7b)(3-7b)
(-x+7y)(-x-7y)(5+y)(-5+y)
(t+3)(t-3)+(t+9)(t+1)(x+3)(x-3)-(4x-8)(2x+5)
(x+1)(x-1)204×196
(a+10)(a-10)(-a+8)(-a-8)
(x+y)(x-y)(8+b)(8-b)
(6x+y)(6x-y)(x+y)(-x+y)
(a+5)(a-5)-(a-5)(a-3)(7a+5)(7a-5)-(4a+7)(2a+3)
(s+3)(s-3)803×797
(c+2)(c-2)(a+4)(a-4)
(x+y)(x-y)(7a+b)(7a-b)
(9x+9y)(9x-9y)(2+2y)(-2+2y)
(y+1)(y-1)-(y-9)(y+8)(b+4)(b-4)+(2b-1)(2b+5)
(t+6)(t-6)71×69
(a+9)(a-9)(-a+8b)(-a-8b)
(4x+y)(4x-y)(8+b)(8-b)
(x+5y)(x-5y)(4x+y)(-4x+y)
(y+7)(y-7)-(y+2)(y+3)(t+4)(t-4)-(3t-6)(3t-7)
(t+6)(t-6)105×95
(t+7)(t-7)(-2a+7b)(-2a-7b)
(9x+5y)(9x-5y)(9+8b)(9-8b)
(-6x+7y)(-6x-7y)(6x+7y)(-6x+7y)
(b+4)(b-4)-(b+5)(b-4)(t+8)(t-8)+(3t+5)(2t-4)
(x+10)(x-10)805×795
(t+8)(t-8)(8a+9b)(8a-9b)
(x+2y)(x-2y)(3a+8b)(3a-8b)
(x+y)(x-y)(x+y)(-x+y)
(s+10)(s-10)-(s+9)(s-9)(6c+10)(6c-10)-(4c-10)(3c+4)
(s+5)(s-5)41×39
(y+5)(y-5)(a+6)(a-6)
(5x+y)(5x-y)(1+9b)(1-9b)
(x+8y)(x-8y)(x+8y)(-x+8y)
(b+4)(b-4)+(b+4)(b-1)(2s+10)(2s-10)+(3s+10)(2s-4)
(b+8)(b-8)404×396
(5c+3)(5c-3)(a+3)(a-3)
(7x+y)(7x-y)(5+b)(5-b)
(-x+y)(-x-y)(x+9y)(-x+9y)
(t+4)(t-4)-(t-1)(t-4)(x+7)(x-7)+(4x-5)(4x-3)
(x+10)(x-10)93×87
(y+8)(y-8)(5a+3)(5a-3)
(x+5y)(x-5y)(a+7b)(a-7b)
(-5x+y)(-5x-y)(2x+y)(-2x+y)
(a+10)(a-10)+(a-7)(a-8)(5t+3)(5t-3)-(3t-8)(2t+5)
(a+2)(a-2)55×45
(y+7)(y-7)(3a+b)(3a-b)
(9x+y)(9x-y)(6+5b)(6-5b)
(5x+6y)(5x-6y)(4x+y)(-4x+y)
(y+9)(y-9)-(y-4)(y-6)(4a+3)(4a-3)-(3a+9)(3a+8)
(t+3)(t-3)803×797
(9t+3)(9t-3)(a+4b)(a-4b)
(x+y)(x-y)(2+7b)(2-7b)
(-8x+y)(-8x-y)(6+2y)(-6+2y)
(b+10)(b-10)+(b-1)(b+8)(9b+9)(9b-9)-(2b+6)(4b+8)
(y+1)(y-1)
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