人教版八年级数学上册乘法公式综合练习题精选18.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18.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18
(s+4)(s-4)905×895
(b+4)(b-4)(-2a+3)(-2a-3)
(x+4y)(x-4y)(1+b)(1-b)
(-2x+y)(-2x-y)(1+8y)(-1+8y)
(b+8)(b-8)+(b+9)(b-3)(s+2)(s-2)+(2s-1)(3s+3)
(b+5)(b-5)95×85
(c+9)(c-9)(-a+b)(-a-b)
(x+8y)(x-8y)(a+b)(a-b)
(-8x+y)(-8x-y)(x+6y)(-x+6y)
(t+1)(t-1)+(t+6)(t+3)(t+9)(t-9)+(2t+4)(2t-3)
(c+5)(c-5)35×25
(x+7)(x-7)(8a+1)(8a-1)
(5x+y)(5x-y)(5+8b)(5-8b)
(6x+y)(6x-y)(9+y)(-9+y)
(c+9)(c-9)-(c-4)(c-2)(a+3)(a-3)-(4a+8)(3a-8)
(c+8)(c-8)605×595
(c+1)(c-1)(-a+b)(-a-b)
(x+7y)(x-7y)(3+b)(3-b)
(x+4y)(x-4y)(x+y)(-x+y)
(b+5)(b-5)-(b+6)(b+5)(t+9)(t-9)-(3t-6)(2t+8)
(t+3)(t-3)301×299
(a+6)(a-6)(-7a+3b)(-7a-3b)
(9x+y)(9x-y)(6+4b)(6-4b)
(x+3y)(x-3y)(6+8y)(-6+8y)
(s+5)(s-5)-(s-2)(s-7)(a+4)(a-4)+(2a-6)(2a-9)
(s+5)(s-5)34×26
(b+3)(b-3)(a+b)(a-b)
(7x+2y)(7x-2y)(6a+b)(6a-b)
(x+2y)(x-2y)(x+y)(-x+y)
(x+7)(x-7)+(x-5)(x-3)(8a+6)(8a-6)-(3a-3)(3a-8)
(x+3)(x-3)84×76
(4c+7)(4c-7)(-5a+7b)(-5a-7b)
(2x+9y)(2x-9y)(10+2b)(10-2b)
(5x+y)(5x-y)(x+5y)(-x+5y)
(t+10)(t-10)-(t-5)(t-2)(9y+2)(9y-2)-(2y-9)(4y-6)
(x+8)(x-8)605×595
(t+4)(t-4)(-a+9)(-a-9)
(x+y)(x-y)(4a+b)(4a-b)
(-x+3y)(-x-3y)(3x+y)(-3x+y)
(y+7)(y-7)-(y-1)(y+8)(10b+9)(10b-9)-(4b+5)(3b-1)
(y+1)(y-1)502×498
(c+4)(c-4)(-7a+4)(-7a-4)
(3x+5y)(3x-5y)(4a+b)(4a-b)
(-x+y)(-x-y)(6x+3y)(-6x+3y)
(b+4)(b-4)+(b+3)(b+8)(4t+8)(4t-8)-(2t-6)(4t+3)
(c+3)(c-3)601×599
(x+10)(x-10)(-5a+9)(-5a-9)
(3x+5y)(3x-5y)(a+5b)(a-5b)
(-x+3y)(-x-3y)(2+y)(-2+y)
(x+3)(x-3)+(x+5)(x-8)(c+8)(c-8)-(3c+8)(2c+9)
(s+4)(s-4)601×599
(7s+10)(7s-10)(a+2b)(a-2b)
(x+y)(x-y)(a+b)(a-b)
(-5x+y)(-5x-y)(5+4y)(-5+4y)
(c+9)(c-9)+(c-4)(c+2)(t+3)(t-3)-(3t+9)(4t-2)
(t+5)(t-5)82×78
(s+7)(s-7)(4a+7)(4a-7)
(x+9y)(x-9y)(2a+b)(2a-b)
(-2x+y)(-2x-y)(7x+y)(-7x+y)
(a+9)(a-9)+(a+5)(a-9)(s+5)(s-5)-(3s+4)(2s-1)
(b+3)(b-3)905×895
(t+3)(t-3)(-5a+5)(-5a-5)
(x+7y)(x-7y)(8+b)(8-b)
(-8x+5y)(-8x-5y)(10+9y)(-10+9y)
(a+3)(a-3)-(a+7)(a-7)(a+10)(a-10)+(3a+9)(3a+5)
(s+1)(s-1)65×55
(4x+10)(4x-10)(-2a+4)(-2a-4)
(x+y)(x-y)(6a+b)(6a-b)
(x+y)(x-y)(5x+4y)(-5x+4y)
(b+7)(b-7)-(b-3)(b-9)(8b+3)(8b-3)-(4b-2)(2b-4)
(y+1)(y-1)702×698
(t+10)(t-10)(6a+b)(6a-b)
(3x+7y)(3x-7y)(5a+9b)(5a-9b)
(x+y)(x-y)(5x+y)(-5x+y)
(b+2)(b-2)+(b-2)(b+4)(c+2)(c-2)+(2c+2)(2c+10)
(x+5)(x-5)601×599
(x+4)(x-4)(3a+2b)(3a-2b)
(8x+y)(8x-y)(8+8b)(8-8b)
(6x+5y)(6x-5y)(1+7y)(-1+7y)
(y+5)(y-5)-(y-9)(y-3)(9c+7)(9c-7)-(2c+3)(2c+6)
(t+4)(t-4)503×497
(6y+6)(6y-6)(a+6b)(a-6b)
(x+5y)(x-5y)(a+6b)(a-6b)
(7x+y)(7x-y)(5x+6y)(-5x+6y)
(y+5)(y-5)+(y-9)(y-9)(5s+5)(5s-5)-(2s+3)(3s+1)
(x+10)(x-10)104×96
(c+10)(c-10)(a+9)(a-9)
(x+y)(x-y)(a+b)(a-b)
(-5x+4y)(-5x-4y)(10+3y)(-10+3y)
(s+6)(s-6)+(s+7)(s+3)(c+4)(c-4)+(2c+3)(4c+9)
(c+4)(c-4)61×59
(4s+9)(4s-9)(-a+1)(-a-1)
(3x+9y)(3x-9y)(9+b)(9-b)
(-7x+y)(-7x-y)(3+y)(-3+y)
(b+7)(b-7)-(b-3)(b+6)(t+5)(t-5)-(2t-3)(2t+6)
(y+10)(y-10)32×28
(a+10)(a-10)(-4a+6)(-4a-6)
(x+3y)(x-3y)(8+2b)(8-2b)
(4x+4y)(4x-4y)(5x+9y)(-5x+9y)
(a+8)(a-8)-(a+9)(a-2)(2a+3)(2a-3)+(2a+4)(3a+7)
(a+1)(a-1)401×399
(3c+5)(3c-5)(-8a+3)(-8a-3)
(x+y)(x-y)(9+b)(9-b)
(-x+9y)(-x-9y)(10+y)(-10+y)
(t+6)(t-6)+(t+1)(t-5)(9x+9)(9x-9)-(4x+6)(2x+8)
(a+8)(a-8)802×798
(7x+2)(7x-2)(-2a+6)(-2a-6)
(7x+y)(7x-y)(a+b)(a-b)
(x+y)(x-y)(6+4y)(-6+4y)
(y+4)(y-4)+(y-9)(y+9)(c+5)(c-5)+(2c-3)(2c-7)
(x+10)(x-10)503×497
(y+7)(y-7)(-9a+b)(-9a-b)
(x+9y)(x-9y)(a+2b)(a-2b)
(-x+y)(-x-y)(3x+9y)(-3x+9y)
(s+6)(s-6)-(s-5)(s+2)(8c+2)(8c-2)+(3c+6)(3c+10)
(s+4)(s-4)901×899
(9b+10)(9b-10)(-a+6)(-a-6)
(3x+8y)(3x-8y)(a+7b)(a-7b)
(x+2y)(x-2y)(x+4y)(-x+4y)
(x+8)(x-8)+(x+8)(x-2)(3t+5)(3t-5)+(3t+1)(4t+7)
(b+4)(b-4)45×35
(y+7)(y-7)(-a+1)(-a-1)
(x+5y)(x-5y)(9+b)(9-b)
(-5x+3y)(-5x-3y)(x+y)(-x+y)
(s+8)(s-8)-(s+7)(s-3)(3c+2)(3c-2)-(3c-9)(2c+4)
(t+10)(t-10)61×59
(2a+10)(2a-10)(-a+7)(-a-7)
(4x+y)(4x-y)(a+b)(a-b)
(-x+6y)(-x-6y)(3+y)(-3+y)
(x+3)(x-3)-(x+9)(x+5)(b+8)(b-8)+(3b-10)(3b+9)
(y+10)(y-10)305×295
(c+8)(c-8)(-2a+b)(-2a-b)
(x+7y)(x-7y)(a+5b)(a-5b)
(x+y)(x-y)(6x+6y)(-6x+6y)
(y+2)(y-2)+(y+4)(y+1)(y+3)(y-3)+(3y+7)(4y-6)
(y+1)(y-1)41×39
(5x+4)(5x-4)(-3a+b)(-3a-b)
(x+y)(x-y)(a+b)(a-b)
(-x+y)(-x-y)(x+y)(-x+y)
(c+7)(c-7)-(c+9)(c-6)(t+4)(t-4)+(2t+10)(2t-6)
(b+3)(b-3)902×898
(t+9)(t-9)(-8a+9b)(-8a-9b)
(9x+8y)(9x-8y)(6a+b)(6a-b)
(-x+6y)(-x-6y)(6x+y)(-6x+y)
(a+2)(a-2)+(a-4)(a+6)(s+2)(s-2)+(3s+8)(4s+7)
(x+7)(x-7)405×395
(s+4)(s-4)(-8a+b)(-8a-b)
(x+y)(x-y)(9+7b)(9-7b)
(-6x+2y)(-6x-2y)(3+3y)(-3+3y)
(a+7)(a-7)+(a+3)(a+8)(4c+10)(4c-10)+(4c+2)(2c+6)
(s+8)(s-8)601×599
(7s+10)(7s-10)(a+4b)(a-4b)
(2x+9y)(2x-9y)(a+b)(a-b)
(x+y)(x-y)(7+y)(-7+y)
(s+4)(s-4)-(s+1)(s-8)(x+6)(x-6)-(2x+2)(4x-1)
(t+5)(t-5)63×57
(c+1)(c-1)(a+3)(a-3)
(4x+8y)(4x-8y)(10+b)(10-b)
(x+3y)(x-3y)(x+8y)(-x+8y)
(s+4)(s-4)-(s-9)(s+7)(5t+5)(5t-5)+(4t+1)(4t-10)
(s+9)(s-9)905×895
(c+2)(c-2)(-a+9)(-a-9)
(8x+8y)(8x-8y)(a+5b)(a-5b)
(8x+8y)(8x-8y)(4x+y)(-4x+y)
(a+4)(a-4)+(a+6)(a+9)(3t+5)(3t-5)-(4t-4)(4t+2)
(y+8)(y-8)201×199
(8c+8)(8c-8)(-a+3b)(-a-3b)
(x+y)(x-y)(10+6b)(10-6b)
(-x+9y)(-x-9y)(x+5y)(-x+5y)
(t+2)(t-2)+(t-8)(t+5)(3s+6)(3s-6)-(2s+3)(4s+3)
(t+8)(t-8)302×298
(t+2)(t-2)(-a+b)(-a-b)
(8x+4y)(8x-4y)(8+b)(8-b)
(-5x+y)(-5x-y)(2+y)(-2+y)
(t+8)(t-8)-(t-7)(t-1)(y+2)(y-2)+(3y+9)(4y-4)
(t+3)(t-3)101×99
(3s+1)(3s-1)(-2a+2)(-2a-2)
(x+y)(x-y)(3+9b)(3-9b)
(x+y)(x-y)(x+2y)(-x+2y)
(s+10)(s-10)-(s-4)(s-7)(y+8)(y-8)+(3y-10)(4y-9)
(t+7)(t-7)604×596
(s+4)(s-4)(-a+4b)(-a-4b)
(6x+y)(6x-y)(1+7b)(1-7b)
(-3x+9y)(-3x-9y)(8+y)(-8+y)
(t+2)(t-2)-(t-2)(t-4)(8t+10)(8t-10)-(4t+1)(4t-7)
(c+5)(c-5)41×39
(b+1)(b-1)(-a+8b)(-a-8b)
(x+9y)(x-9y)(5+b)(5-b)
(7x+y)(7x-y)(10+4y)(-10+4y)
(c+2)(c-2)-(c+7)(c+8)(b+10)(b-10)+(4b+4)(3b+8)
(b+9)(b-9)105×95
(7x+7)(7x-7)(a+1)(a-1)
(x+7y)(x-7y)(6a+4b)(6a-4b)
(3x+2y)(3x-2y)(8x+y)(-8x+y)
(b+2)(b-2)+(b+2)(b+4)(10b+6)(10b-6)+(2b+2)(4b-3)
(b+2)(b-2)402×398
(a+8)(a-8)(-a+7)(-a-7)
(6x+y)(6x-y)(5+5b)(5-5b)
(-9x+3y)(-9x-3y)(9+8y)(-9+8y)
(x+1)(x-1)+(x-9)(x-6)(6c+9)(6c-9)+(2c-4)(2c+6)
(t+8)(t-8)62×58
(c+6)(c-6)(a+3b)(a-3b)
(3x+y)(3x-y)(4a+7b)(4a-7b)
(-x+6y)(-x-6y)(x+y)(-x+y)
(t+4)(t-4)-(t-6)(t-6)(7s+8)(7s-8)+(3s+2)(3s+4)
(t+10)(t-10)803×797
(9y+3)(9y-3)(a+b)(a-b)
(x+9y)(x-9y)(9a+b)(9a-b)
(-x+7y)(-x-7y)(3+4y)(-3+4y)
(y+6)(y-6)-(y+7)(y+9)(b+10)(b-10)-(4b+8)(3b+3)
(a+9)(a-9)701×699
(y+8)(y-8)(8a+4)(8a-4)
(x+3y)(x-3y)(a+b)(a-b)
(-6x+9y)(-6x-9y)(7+7y)(-7+7y)
(a+3)(a-3)+(a-4)(a-2)(6t+4)(6t-4)-(4t+7)(3t-7)
(b+1)(b-1)403×397
(6t+6)(6t-6)(a+1)(a-1)
(4x+6y)(4x-6y)(8a+6b)(8a-6b)
(9x+y)(9x-y)(3x+2y)(-3x+2y)
(c+2)(c-2)+(c-2)(c-8)(5t+10)(5t-10)+(3t-1)(2t-3)
(s+4)(s-4)604×596
(a+10)(a-10)(a+5b)(a-5b)
(x+6y)(x-6y)(2+b)(2-b)
(-x+7y)(-x-7y)(1+6y)(-1+6y)
(x+4)(x-4)+(x-1)(x-7)(a+2)(a-2)-(4a+5)(2a+9)
(c+9)(c-9)95×85
(a+1)(a-1)(a+6)(a-6)
(7x+y)(7x-y)(1+4b)(1-4b)
(-8x+y)(-8x-y)(x+y)(-x+y)
(c+2)(c-2)-(c-3)(c-4)(y+3)(y-3)-(3y-10)(2y-10)
(c+8)(c-8)63×57
(b+8)(b-8)(a+2)(a-2)
(3x+y)(3x-y)(3+6b)(3-6b)
(x+y)(x-y)(x+9y)(-x+9y)
(s+3)(s-3)-(s+8)(s+4)(t+10)(t-10)-(3t+4)(4t+7)
(b+8)(b-8)63×57
(t+1)(t-1)(6a+2b)(6a-2b)
(7x+y)(7x-y)(7a+3b)(7a-3b)
(x+y)(x-y)(3x+y)(-3x+y)
(a+7)(a-7)-(a+3)(a-7)(2a+10)(2a-10)+(4a-2)(4a+4)
(c+9)(c-9)401×399
(y+2)(y-2)(-3a+8b)(-3a-8b)
(5x+y)(5x-y)(8+b)(8-b)
(x+y)(x-y)(9x+4y)(-9x+4y)
(a+2)(a-2)-(a-3)(a+5)(b+10)(b-10)+(3b+2)(4b-10)
(b+8)(b-8)42×38
(6a+8)(6a-8)(7a+4)(7a-4)
(8x+y)(8x-y)(9+b)(9-b)
(-9x+y)(-9x-y)(7x+y)(-7x+y)
(x+9)(x-9)+(x+2)(x+8)(c+2)(c-2)+(2c+9)(2c-2)
(x+1)(x-1)804×796
(s+3)(s-3)(a+3b)(a-3b)
(3x+4y)(3x-4y)(2a+4b)(2a-4b)
(x+y)(x-y)(5x+9y)(-5x+9y)
(s+2)(s-2)-(s+1)(s+7)(a+5)(a-5)+(4a-10)(2a+4)
(b+10)(b-10)83×77
(c+7)(c-7)(-a+4)(-a-4)
(x+y)(x-y)(5+b)(5-b)
(-x+y)(-x-y)(x+4y)(-x+4y)
(t+5)(t-5)+(t-8)(t+1)(t+3)(t-3)+(2t-10)(3t+7)
(s+3)(s-3)83×77
(y+2)(y-2)(-5a+9)(-5a-9)
(x+y)(x-y)(4+3b)(4-3b)
(-9x+y)(-9x-y)(9+5y)(-9+5y)
(s+3)(s-3)+(s+7)(s-1)(x+9)(x-9)+(2x+5)(3x+2)
(s+1)(s-1)95×85
(9c+9)(9c-9)(3a+7)(3a-7)
(x+y)(x-y)(6+7b)(6-7b)
(x+y)(x-y)(6+y)(-6+y)
(s+7)(s-7)-(s-9)(s-1)(y+8)(y-8)+(3y-8)(4y-3)
(b+6)(b-6)602×598
(a+10)(a-10)(-a+5)(-a-5)
(8x+2y)(8x-2y)(2a+b)(2a-b)
(-9x+4y)(-9x-4y)(2+8y)(-2+8y)
(b+1)(b-1)+(b-2)(b+2)(y+4)(y-4)-(3y-2)(2y+3)
(a+6)(a-6)82×78
(a+8)(a-8)(2a+9b)(2a-9b)
(x+2y)(x-2y)(3a+b)(3a-b)
(8x+5y)(8x-5y)(x+6y)(-x+6y)
(b+10)(b-10)+(b+2)(b+3)(5x+5)(5x-5)+(4x+1)(2x-4)
(b+9)(b-9)105×95
(s+10)(s-10)(-7a+7)(-7a-7)
(x+3y)(x-3y)(9+b)(9-b)
(x+y)(x-y)(2+y)(-2+y)
(b+6)(b-6)-(b-7)(b+5)(s+9)(s-9)-(4
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