人教版八年级数学上册乘法公式综合练习题精选3.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3.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3
(y+8)(y-8)103×97
(5y+10)(5y-10)(a+1)(a-1)
(x+4y)(x-4y)(9a+9b)(9a-9b)
(x+y)(x-y)(3+4y)(-3+4y)
(x+8)(x-8)-(x-8)(x-7)(3a+2)(3a-2)+(3a+6)(2a+5)
(b+8)(b-8)505×495
(3s+9)(3s-9)(-2a+6)(-2a-6)
(3x+y)(3x-y)(a+b)(a-b)
(x+y)(x-y)(9x+y)(-9x+y)
(s+10)(s-10)+(s-2)(s-5)(a+2)(a-2)-(4a+4)(3a-2)
(x+7)(x-7)804×796
(y+6)(y-6)(a+8)(a-8)
(x+y)(x-y)(6a+b)(6a-b)
(-7x+7y)(-7x-7y)(x+3y)(-x+3y)
(a+10)(a-10)+(a-7)(a+5)(x+2)(x-2)+(4x+3)(2x-10)
(s+4)(s-4)93×87
(a+1)(a-1)(-5a+b)(-5a-b)
(7x+y)(7x-y)(1+6b)(1-6b)
(-5x+y)(-5x-y)(8+6y)(-8+6y)
(c+6)(c-6)+(c-8)(c-1)(9a+4)(9a-4)+(3a+4)(3a-2)
(x+7)(x-7)703×697
(2x+9)(2x-9)(a+3b)(a-3b)
(x+y)(x-y)(10+b)(10-b)
(-5x+7y)(-5x-7y)(3x+y)(-3x+y)
(c+5)(c-5)-(c-6)(c-7)(c+9)(c-9)+(3c-6)(2c+5)
(b+2)(b-2)44×36
(y+6)(y-6)(a+1)(a-1)
(6x+7y)(6x-7y)(4+6b)(4-6b)
(x+9y)(x-9y)(9+6y)(-9+6y)
(c+4)(c-4)+(c-1)(c+4)(8b+5)(8b-5)-(4b+2)(4b-3)
(t+9)(t-9)601×599
(c+9)(c-9)(-a+6)(-a-6)
(6x+y)(6x-y)(9+b)(9-b)
(x+4y)(x-4y)(8x+y)(-8x+y)
(y+4)(y-4)-(y+6)(y+1)(4a+9)(4a-9)+(3a+3)(3a-1)
(x+1)(x-1)503×497
(t+4)(t-4)(9a+1)(9a-1)
(9x+y)(9x-y)(a+b)(a-b)
(-6x+y)(-6x-y)(3+y)(-3+y)
(a+8)(a-8)+(a-6)(a+5)(8a+1)(8a-1)+(2a+6)(3a-5)
(s+5)(s-5)802×798
(8y+10)(8y-10)(-8a+9)(-8a-9)
(x+y)(x-y)(2+9b)(2-9b)
(x+y)(x-y)(5+y)(-5+y)
(a+8)(a-8)-(a-8)(a+4)(c+1)(c-1)-(4c+8)(2c-2)
(t+5)(t-5)105×95
(4c+7)(4c-7)(-5a+6)(-5a-6)
(x+4y)(x-4y)(1+6b)(1-6b)
(-8x+y)(-8x-y)(5+9y)(-5+9y)
(a+6)(a-6)+(a-1)(a-3)(2x+2)(2x-2)+(2x+8)(2x+1)
(c+5)(c-5)74×66
(4c+6)(4c-6)(-a+3)(-a-3)
(2x+4y)(2x-4y)(6a+b)(6a-b)
(-7x+y)(-7x-y)(3+y)(-3+y)
(x+8)(x-8)-(x+6)(x-5)(t+8)(t-8)-(4t-4)(3t+5)
(y+4)(y-4)93×87
(9y+7)(9y-7)(a+b)(a-b)
(x+5y)(x-5y)(a+4b)(a-4b)
(-8x+y)(-8x-y)(2+y)(-2+y)
(a+6)(a-6)+(a-4)(a-2)(8t+6)(8t-6)+(2t+5)(2t-5)
(x+10)(x-10)93×87
(a+7)(a-7)(4a+1)(4a-1)
(5x+4y)(5x-4y)(2a+8b)(2a-8b)
(-6x+y)(-6x-y)(7+5y)(-7+5y)
(y+3)(y-3)+(y-8)(y+3)(a+7)(a-7)+(3a-2)(3a-1)
(s+4)(s-4)904×896
(x+3)(x-3)(a+2b)(a-2b)
(4x+9y)(4x-9y)(a+b)(a-b)
(x+7y)(x-7y)(x+y)(-x+y)
(b+5)(b-5)-(b+5)(b-6)(4b+4)(4b-4)-(2b+9)(4b+4)
(a+8)(a-8)84×76
(y+8)(y-8)(a+b)(a-b)
(6x+y)(6x-y)(7a+5b)(7a-5b)
(-x+6y)(-x-6y)(2x+6y)(-2x+6y)
(y+7)(y-7)-(y+1)(y+6)(8t+9)(8t-9)-(3t-7)(4t+6)
(b+1)(b-1)83×77
(t+5)(t-5)(-a+b)(-a-b)
(x+2y)(x-2y)(7a+3b)(7a-3b)
(-5x+y)(-5x-y)(2x+y)(-2x+y)
(s+5)(s-5)+(s+2)(s+2)(t+10)(t-10)-(4t-7)(2t-10)
(b+9)(b-9)901×899
(2y+1)(2y-1)(-9a+4)(-9a-4)
(8x+9y)(8x-9y)(2+b)(2-b)
(x+9y)(x-9y)(4x+y)(-4x+y)
(a+10)(a-10)+(a+5)(a-1)(9a+6)(9a-6)-(4a-5)(2a+7)
(c+4)(c-4)83×77
(a+10)(a-10)(8a+2)(8a-2)
(4x+y)(4x-y)(a+3b)(a-3b)
(x+2y)(x-2y)(2+y)(-2+y)
(y+4)(y-4)+(y+2)(y+5)(3y+5)(3y-5)-(4y-2)(3y+9)
(y+7)(y-7)302×298
(3s+3)(3s-3)(-9a+5)(-9a-5)
(x+y)(x-y)(a+b)(a-b)
(x+5y)(x-5y)(x+8y)(-x+8y)
(t+8)(t-8)+(t+6)(t+7)(t+3)(t-3)-(2t-5)(2t+7)
(y+8)(y-8)802×798
(7s+4)(7s-4)(-8a+b)(-8a-b)
(8x+6y)(8x-6y)(5+b)(5-b)
(-x+9y)(-x-9y)(3x+y)(-3x+y)
(x+9)(x-9)+(x+9)(x-4)(t+8)(t-8)-(3t-3)(2t+4)
(t+4)(t-4)44×36
(s+9)(s-9)(2a+9)(2a-9)
(x+y)(x-y)(8a+9b)(8a-9b)
(x+4y)(x-4y)(5+2y)(-5+2y)
(a+8)(a-8)-(a+8)(a-3)(3x+2)(3x-2)-(3x-3)(4x-1)
(a+7)(a-7)52×48
(y+9)(y-9)(9a+4b)(9a-4b)
(4x+2y)(4x-2y)(10+b)(10-b)
(-6x+y)(-6x-y)(x+9y)(-x+9y)
(c+10)(c-10)-(c+5)(c+6)(s+7)(s-7)-(2s-9)(2s+5)
(t+7)(t-7)94×86
(y+8)(y-8)(-3a+3b)(-3a-3b)
(x+y)(x-y)(7a+9b)(7a-9b)
(6x+y)(6x-y)(8x+y)(-8x+y)
(y+1)(y-1)+(y+8)(y+7)(5t+10)(5t-10)-(4t+5)(4t+8)
(y+10)(y-10)63×57
(a+1)(a-1)(-a+b)(-a-b)
(x+8y)(x-8y)(7+8b)(7-8b)
(-9x+y)(-9x-y)(10+y)(-10+y)
(s+3)(s-3)-(s+4)(s+2)(4y+9)(4y-9)-(4y+2)(4y-6)
(x+6)(x-6)303×297
(b+4)(b-4)(2a+9b)(2a-9b)
(x+7y)(x-7y)(4+b)(4-b)
(-x+y)(-x-y)(4+6y)(-4+6y)
(t+8)(t-8)-(t+3)(t-9)(9t+1)(9t-1)+(2t-1)(3t-8)
(t+2)(t-2)101×99
(b+7)(b-7)(6a+6b)(6a-6b)
(2x+y)(2x-y)(10+b)(10-b)
(8x+2y)(8x-2y)(7+4y)(-7+4y)
(x+9)(x-9)+(x+5)(x-5)(b+1)(b-1)+(3b-6)(3b-10)
(c+8)(c-8)93×87
(6c+2)(6c-2)(-3a+7)(-3a-7)
(x+y)(x-y)(3a+b)(3a-b)
(-x+y)(-x-y)(7+7y)(-7+7y)
(c+2)(c-2)-(c+8)(c-3)(x+2)(x-2)+(3x-6)(2x+5)
(b+5)(b-5)504×496
(6s+7)(6s-7)(a+7)(a-7)
(x+7y)(x-7y)(5+9b)(5-9b)
(-x+8y)(-x-8y)(4+2y)(-4+2y)
(y+4)(y-4)-(y-1)(y+3)(9y+3)(9y-3)-(4y-5)(3y-1)
(t+7)(t-7)903×897
(4b+3)(4b-3)(a+2b)(a-2b)
(9x+2y)(9x-2y)(10+b)(10-b)
(9x+6y)(9x-6y)(8+3y)(-8+3y)
(s+10)(s-10)+(s-4)(s-7)(7c+4)(7c-4)-(3c-6)(3c-3)
(s+9)(s-9)204×196
(c+8)(c-8)(-a+3)(-a-3)
(9x+y)(9x-y)(5+4b)(5-4b)
(-x+y)(-x-y)(5+2y)(-5+2y)
(s+2)(s-2)+(s+2)(s+4)(y+6)(y-6)-(3y+8)(3y+8)
(a+10)(a-10)82×78
(t+7)(t-7)(a+b)(a-b)
(3x+5y)(3x-5y)(7a+b)(7a-b)
(3x+y)(3x-y)(9+9y)(-9+9y)
(y+8)(y-8)-(y+6)(y-8)(b+5)(b-5)-(2b+10)(4b-6)
(x+4)(x-4)34×26
(a+6)(a-6)(-6a+2b)(-6a-2b)
(8x+9y)(8x-9y)(a+3b)(a-3b)
(x+y)(x-y)(x+y)(-x+y)
(t+8)(t-8)-(t+1)(t-6)(t+10)(t-10)-(2t+8)(4t+7)
(b+8)(b-8)201×199
(s+6)(s-6)(9a+b)(9a-b)
(x+7y)(x-7y)(4a+b)(4a-b)
(2x+4y)(2x-4y)(7+y)(-7+y)
(s+9)(s-9)+(s-7)(s-3)(c+7)(c-7)-(2c+1)(3c-8)
(s+5)(s-5)903×897
(4s+2)(4s-2)(a+b)(a-b)
(8x+y)(8x-y)(a+b)(a-b)
(x+2y)(x-2y)(x+y)(-x+y)
(a+6)(a-6)-(a+5)(a+7)(8y+3)(8y-3)+(4y+10)(3y-6)
(x+10)(x-10)203×197
(4s+7)(4s-7)(-8a+b)(-8a-b)
(x+9y)(x-9y)(a+3b)(a-3b)
(-x+y)(-x-y)(x+4y)(-x+4y)
(a+8)(a-8)-(a+3)(a-6)(8c+5)(8c-5)+(3c+8)(3c+8)
(t+5)(t-5)701×699
(x+9)(x-9)(-a+1)(-a-1)
(3x+y)(3x-y)(6a+5b)(6a-5b)
(-9x+6y)(-9x-6y)(7x+y)(-7x+y)
(x+8)(x-8)+(x-4)(x-5)(x+8)(x-8)+(3x-5)(2x+4)
(b+8)(b-8)704×696
(6y+6)(6y-6)(2a+b)(2a-b)
(6x+8y)(6x-8y)(10+b)(10-b)
(-x+6y)(-x-6y)(8+6y)(-8+6y)
(b+9)(b-9)-(b+9)(b+6)(10a+3)(10a-3)+(4a-4)(4a-5)
(x+10)(x-10)703×697
(5s+4)(5s-4)(3a+3)(3a-3)
(x+2y)(x-2y)(2a+b)(2a-b)
(-6x+2y)(-6x-2y)(3+7y)(-3+7y)
(s+2)(s-2)+(s+1)(s+8)(2s+2)(2s-2)-(2s+5)(4s+10)
(t+5)(t-5)902×898
(3y+7)(3y-7)(7a+1)(7a-1)
(x+3y)(x-3y)(9a+b)(9a-b)
(9x+9y)(9x-9y)(6+3y)(-6+3y)
(s+9)(s-9)+(s+5)(s-7)(10s+6)(10s-6)-(4s+2)(3s+4)
(b+4)(b-4)105×95
(6s+10)(6s-10)(a+b)(a-b)
(5x+8y)(5x-8y)(8a+4b)(8a-4b)
(x+y)(x-y)(x+4y)(-x+4y)
(a+3)(a-3)-(a-8)(a+8)(a+8)(a-8)-(2a+7)(4a+6)
(s+3)(s-3)305×295
(a+9)(a-9)(-a+6)(-a-6)
(x+5y)(x-5y)(a+8b)(a-8b)
(-x+y)(-x-y)(x+y)(-x+y)
(b+5)(b-5)+(b-8)(b+2)(a+8)(a-8)-(3a-9)(4a+5)
(s+7)(s-7)83×77
(a+7)(a-7)(-a+1)(-a-1)
(8x+4y)(8x-4y)(4a+3b)(4a-3b)
(-2x+y)(-2x-y)(7+y)(-7+y)
(t+3)(t-3)-(t+1)(t-2)(6s+4)(6s-4)+(2s+6)(3s-5)
(c+10)(c-10)605×595
(9t+6)(9t-6)(a+9)(a-9)
(5x+9y)(5x-9y)(3+b)(3-b)
(4x+y)(4x-y)(3x+6y)(-3x+6y)
(a+2)(a-2)-(a+4)(a-1)(9b+3)(9b-3)-(2b-4)(3b+5)
(a+7)(a-7)85×75
(6a+3)(6a-3)(-6a+1)(-6a-1)
(x+y)(x-y)(a+b)(a-b)
(-x+y)(-x-y)(2+y)(-2+y)
(t+3)(t-3)+(t+3)(t+7)(a+4)(a-4)-(4a-6)(3a+8)
(c+3)(c-3)52×48
(y+4)(y-4)(-a+b)(-a-b)
(x+2y)(x-2y)(2a+b)(2a-b)
(8x+y)(8x-y)(7x+y)(-7x+y)
(t+3)(t-3)-(t+9)(t-4)(x+2)(x-2)+(2x+9)(4x+6)
(y+10)(y-10)605×595
(b+7)(b-7)(-a+1)(-a-1)
(6x+7y)(6x-7y)(1+8b)(1-8b)
(9x+y)(9x-y)(2+y)(-2+y)
(y+4)(y-4)+(y+5)(y-2)(s+1)(s-1)-(3s+4)(3s+2)
(a+7)(a-7)305×295
(2a+3)(2a-3)(-8a+5b)(-8a-5b)
(8x+y)(8x-y)(2+b)(2-b)
(-2x+8y)(-2x-8y)(9x+3y)(-9x+3y)
(b+8)(b-8)-(b-5)(b+1)(y+5)(y-5)+(3y+4)(3y-10)
(b+1)(b-1)53×47
(4b+4)(4b-4)(a+2b)(a-2b)
(x+3y)(x-3y)(3a+b)(3a-b)
(x+4y)(x-4y)(2+y)(-2+y)
(t+9)(t-9)+(t+6)(t-1)(x+6)(x-6)-(2x+8)(4x-6)
(c+6)(c-6)504×496
(y+1)(y-1)(-a+b)(-a-b)
(x+y)(x-y)(7a+b)(7a-b)
(x+y)(x-y)(x+6y)(-x+6y)
(s+3)(s-3)+(s-5)(s+5)(2x+3)(2x-3)+(2x-10)(2x+4)
(x+2)(x-2)83×77
(3a+4)(3a-4)(8a+2)(8a-2)
(x+y)(x-y)(2+3b)(2-3b)
(x+y)(x-y)(x+3y)(-x+3y)
(a+8)(a-8)-(a-2)(a+2)(7b+2)(7b-2)+(4b+5)(2b+9)
(x+3)(x-3)103×97
(7x+5)(7x-5)(5a+7b)(5a-7b)
(2x+y)(2x-y)(9+b)(9-b)
(-2x+y)(-2x-y)(x+y)(-x+y)
(x+6)(x-6)+(x+3)(x+5)(t+1)(t-1)+(2t+5)(2t-10)
(a+3)(a-3)304×296
(7s+9)(7s-9)(-7a+8b)(-7a-8b)
(4x+y)(4x-y)(3+b)(3-b)
(7x+5y)(7x-5y)(3x+7y)(-3x+7y)
(t+4)(t-4)-(t-2)(t-8)(t+7)(t-7)-(2t+8)(2t-7)
(y+4)(y-4)61×59
(a+5)(a-5)(-a+6b)(-a-6b)
(x+8y)(x-8y)(9+b)(9-b)
(2x+9y)(2x-9y)(7+7y)(-7+7y)
(s+8)(s-8)+(s-7)(s-3)(8c+9)(8c-9)+(2c+1)(2c+2)
(b+8)(b-8)62×58
(7a+4)(7a-4)(a+b)(a-b)
(x+y)(x-y)(6+7b)(6-7b)
(9x+y)(9x-y)(8x+7y)(-8x+7y)
(t+1)(t-1)-(t-7)(t-8)(3a+10)(3a-10)-(3a+1)(2a+8)
(a+5)(a-5)705×695
(a+10)(a-10)(a+1)(a-1)
(x+2y)(x-2y)(2+b)(2-b)
(x+y)(x-y)(x+2y)(-x+2y)
(s+8)(s-8)-(s+8)(s-4)(5x+9)(5x-9)-(4x+5)(3x-6)
(a+9)(a-9)703×697
(t+10)(t-10)(-a+9b)(-a-9b)
(x+y)(x-y)(7+b)(7-b)
(-7x+4y)(-7x-4y)(7+y)(-7+y)
(t+10)(t-10)+(t+7)(t+3)(10y+9)(10y-9)+(2y-10)(2y-10)
(s+10)(s-10)41×39
(y+5)(y-5)(8a+7)(8a-7)
(3x+8y)(3x-8y)(a+b)(a-b)
(-x+y)(-x-y)(x+6y)(-x+6y)
(b+10)(b-10)-(b-1)(b+1)(y+1)(y-1)+(2y+5)(4y-10)
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