人教版八年级数学上册乘法公式综合练习题精选30.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30.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30
(s+2)(s-2)301×299
(s+4)(s-4)(-9a+b)(-9a-b)
(3x+4y)(3x-4y)(7+b)(7-b)
(-5x+y)(-5x-y)(7x+7y)(-7x+7y)
(y+10)(y-10)-(y+4)(y+7)(2y+1)(2y-1)+(3y-5)(2y-5)
(b+4)(b-4)61×59
(3t+5)(3t-5)(-8a+2)(-8a-2)
(x+y)(x-y)(3a+b)(3a-b)
(-6x+y)(-6x-y)(9+6y)(-9+6y)
(y+2)(y-2)+(y-8)(y-5)(3s+7)(3s-7)+(4s+8)(3s-10)
(a+9)(a-9)202×198
(7s+9)(7s-9)(-9a+b)(-9a-b)
(6x+6y)(6x-6y)(a+b)(a-b)
(x+5y)(x-5y)(3+y)(-3+y)
(x+9)(x-9)-(x+6)(x-6)(6b+1)(6b-1)+(3b-10)(2b-5)
(a+6)(a-6)63×57
(y+9)(y-9)(-6a+7)(-6a-7)
(8x+6y)(8x-6y)(a+4b)(a-4b)
(-x+y)(-x-y)(x+5y)(-x+5y)
(t+4)(t-4)+(t+2)(t+7)(x+2)(x-2)-(3x-1)(4x+6)
(c+5)(c-5)41×39
(c+9)(c-9)(a+8)(a-8)
(x+y)(x-y)(8a+6b)(8a-6b)
(-x+y)(-x-y)(4+y)(-4+y)
(y+8)(y-8)+(y+5)(y-8)(s+10)(s-10)+(4s-5)(2s+1)
(t+8)(t-8)103×97
(c+2)(c-2)(-9a+9b)(-9a-9b)
(8x+5y)(8x-5y)(7a+9b)(7a-9b)
(-3x+y)(-3x-y)(6x+y)(-6x+y)
(x+4)(x-4)-(x-1)(x-9)(5x+6)(5x-6)+(2x-6)(4x+3)
(b+1)(b-1)63×57
(7t+9)(7t-9)(a+2)(a-2)
(7x+y)(7x-y)(2+3b)(2-3b)
(-3x+y)(-3x-y)(x+6y)(-x+6y)
(t+5)(t-5)-(t-6)(t+3)(9t+9)(9t-9)-(4t+3)(4t-6)
(b+10)(b-10)81×79
(3a+6)(3a-6)(-9a+b)(-9a-b)
(x+y)(x-y)(5a+6b)(5a-6b)
(7x+8y)(7x-8y)(10+y)(-10+y)
(t+4)(t-4)+(t-3)(t+8)(a+7)(a-7)+(2a+1)(3a+4)
(y+1)(y-1)82×78
(b+4)(b-4)(4a+6)(4a-6)
(5x+5y)(5x-5y)(7+6b)(7-6b)
(-6x+y)(-6x-y)(1+y)(-1+y)
(b+10)(b-10)+(b-6)(b-6)(x+9)(x-9)+(4x+1)(2x+9)
(y+1)(y-1)503×497
(b+4)(b-4)(a+9)(a-9)
(x+y)(x-y)(a+b)(a-b)
(-9x+9y)(-9x-9y)(7+y)(-7+y)
(c+8)(c-8)-(c+5)(c+9)(y+4)(y-4)+(2y-8)(3y+9)
(c+7)(c-7)34×26
(b+9)(b-9)(-a+b)(-a-b)
(6x+y)(6x-y)(4a+9b)(4a-9b)
(2x+y)(2x-y)(7x+4y)(-7x+4y)
(s+2)(s-2)+(s-4)(s-3)(4x+10)(4x-10)+(2x+4)(4x+10)
(y+8)(y-8)34×26
(y+6)(y-6)(-7a+3b)(-7a-3b)
(x+3y)(x-3y)(a+b)(a-b)
(-x+y)(-x-y)(3x+9y)(-3x+9y)
(x+7)(x-7)-(x+3)(x-6)(x+6)(x-6)-(3x+10)(3x-3)
(t+7)(t-7)805×795
(9t+8)(9t-8)(8a+8b)(8a-8b)
(x+9y)(x-9y)(4+3b)(4-3b)
(-7x+9y)(-7x-9y)(10+y)(-10+y)
(a+6)(a-6)-(a-7)(a+8)(x+4)(x-4)+(3x-9)(2x+1)
(a+5)(a-5)65×55
(s+4)(s-4)(a+1)(a-1)
(x+3y)(x-3y)(1+9b)(1-9b)
(x+y)(x-y)(x+y)(-x+y)
(a+8)(a-8)-(a+5)(a+6)(a+1)(a-1)-(4a+8)(4a+2)
(t+6)(t-6)505×495
(6t+7)(6t-7)(9a+3)(9a-3)
(x+y)(x-y)(7a+b)(7a-b)
(2x+5y)(2x-5y)(7+9y)(-7+9y)
(c+3)(c-3)-(c-5)(c+8)(c+4)(c-4)-(4c-3)(2c-3)
(s+6)(s-6)304×296
(y+10)(y-10)(8a+3)(8a-3)
(x+y)(x-y)(2+b)(2-b)
(x+4y)(x-4y)(8x+y)(-8x+y)
(a+1)(a-1)+(a-9)(a-1)(9c+5)(9c-5)-(4c+9)(2c+4)
(t+2)(t-2)75×65
(2t+10)(2t-10)(-6a+b)(-6a-b)
(7x+2y)(7x-2y)(a+4b)(a-4b)
(-6x+y)(-6x-y)(9+4y)(-9+4y)
(c+6)(c-6)-(c+8)(c-9)(x+2)(x-2)+(2x-8)(2x+9)
(s+4)(s-4)94×86
(b+5)(b-5)(-3a+8)(-3a-8)
(x+y)(x-y)(a+b)(a-b)
(5x+y)(5x-y)(2+8y)(-2+8y)
(s+2)(s-2)-(s-4)(s-2)(b+2)(b-2)-(3b+1)(3b+7)
(b+6)(b-6)35×25
(y+4)(y-4)(-a+7)(-a-7)
(x+y)(x-y)(9a+8b)(9a-8b)
(-x+y)(-x-y)(3+y)(-3+y)
(t+8)(t-8)+(t+2)(t+6)(s+7)(s-7)-(2s+9)(3s-8)
(x+9)(x-9)51×49
(t+2)(t-2)(7a+5b)(7a-5b)
(2x+2y)(2x-2y)(3+8b)(3-8b)
(-x+4y)(-x-4y)(x+8y)(-x+8y)
(s+3)(s-3)+(s-5)(s+5)(y+8)(y-8)+(2y-6)(4y-7)
(y+9)(y-9)405×395
(b+7)(b-7)(-a+b)(-a-b)
(4x+8y)(4x-8y)(8+b)(8-b)
(-3x+y)(-3x-y)(x+y)(-x+y)
(x+7)(x-7)-(x-6)(x+7)(a+3)(a-3)-(4a+7)(4a-4)
(y+10)(y-10)602×598
(c+6)(c-6)(7a+9b)(7a-9b)
(x+2y)(x-2y)(7+b)(7-b)
(-8x+y)(-8x-y)(5x+y)(-5x+y)
(a+3)(a-3)-(a+7)(a-3)(9c+9)(9c-9)-(4c+6)(2c+1)
(a+6)(a-6)71×69
(t+10)(t-10)(-a+7)(-a-7)
(3x+y)(3x-y)(9+b)(9-b)
(-4x+y)(-4x-y)(8x+y)(-8x+y)
(s+8)(s-8)-(s-1)(s+9)(6y+7)(6y-7)-(2y+5)(2y+1)
(y+1)(y-1)101×99
(s+1)(s-1)(-5a+3b)(-5a-3b)
(x+y)(x-y)(8a+6b)(8a-6b)
(x+5y)(x-5y)(4+5y)(-4+5y)
(t+1)(t-1)-(t+2)(t+8)(5s+9)(5s-9)+(2s+3)(2s-6)
(b+1)(b-1)42×38
(x+10)(x-10)(3a+2)(3a-2)
(3x+y)(3x-y)(9a+8b)(9a-8b)
(-6x+9y)(-6x-9y)(6+y)(-6+y)
(t+5)(t-5)+(t-5)(t-5)(y+8)(y-8)+(3y+10)(2y-4)
(t+9)(t-9)42×38
(t+8)(t-8)(a+2b)(a-2b)
(x+3y)(x-3y)(6+6b)(6-6b)
(-x+6y)(-x-6y)(4+y)(-4+y)
(t+1)(t-1)+(t-3)(t-2)(2a+4)(2a-4)+(3a-2)(3a+10)
(b+5)(b-5)201×199
(b+8)(b-8)(-a+9)(-a-9)
(x+y)(x-y)(2a+5b)(2a-5b)
(x+7y)(x-7y)(7+4y)(-7+4y)
(y+3)(y-3)+(y+7)(y-2)(7c+8)(7c-8)+(3c+9)(3c+3)
(b+1)(b-1)91×89
(6a+10)(6a-10)(-3a+8)(-3a-8)
(4x+2y)(4x-2y)(3+9b)(3-9b)
(-6x+y)(-6x-y)(3+y)(-3+y)
(s+3)(s-3)+(s-3)(s+7)(t+10)(t-10)-(4t+8)(2t+6)
(c+7)(c-7)402×398
(8a+2)(8a-2)(-a+6b)(-a-6b)
(3x+y)(3x-y)(a+b)(a-b)
(-x+y)(-x-y)(8+3y)(-8+3y)
(t+8)(t-8)-(t+7)(t+3)(4s+1)(4s-1)-(2s+9)(4s+3)
(a+4)(a-4)83×77
(2b+3)(2b-3)(6a+4)(6a-4)
(4x+y)(4x-y)(10+b)(10-b)
(-7x+y)(-7x-y)(9x+7y)(-9x+7y)
(c+8)(c-8)+(c+4)(c+1)(a+5)(a-5)-(2a+3)(2a-6)
(x+4)(x-4)33×27
(s+9)(s-9)(a+7)(a-7)
(x+4y)(x-4y)(a+b)(a-b)
(-x+y)(-x-y)(5+8y)(-5+8y)
(s+4)(s-4)-(s-6)(s-3)(x+3)(x-3)-(3x+7)(4x-3)
(c+6)(c-6)504×496
(c+10)(c-10)(-6a+b)(-6a-b)
(4x+y)(4x-y)(6+b)(6-b)
(-x+4y)(-x-4y)(x+y)(-x+y)
(s+10)(s-10)-(s+3)(s+3)(y+1)(y-1)+(2y+4)(3y-6)
(t+10)(t-10)64×56
(8y+3)(8y-3)(a+b)(a-b)
(x+7y)(x-7y)(a+5b)(a-5b)
(7x+8y)(7x-8y)(x+y)(-x+y)
(a+6)(a-6)-(a+3)(a-7)(10c+6)(10c-6)-(4c+2)(4c+5)
(y+6)(y-6)81×79
(8y+6)(8y-6)(-a+7b)(-a-7b)
(x+y)(x-y)(3+b)(3-b)
(-x+6y)(-x-6y)(7+y)(-7+y)
(b+2)(b-2)-(b-6)(b+3)(b+7)(b-7)+(2b+6)(3b+6)
(x+4)(x-4)65×55
(3a+3)(3a-3)(2a+1)(2a-1)
(8x+2y)(8x-2y)(6a+b)(6a-b)
(-x+8y)(-x-8y)(6x+y)(-6x+y)
(c+1)(c-1)+(c-2)(c+3)(y+4)(y-4)+(2y+8)(2y-9)
(t+9)(t-9)902×898
(t+10)(t-10)(a+2)(a-2)
(2x+y)(2x-y)(a+b)(a-b)
(x+y)(x-y)(x+y)(-x+y)
(s+6)(s-6)-(s+9)(s+6)(4t+1)(4t-1)-(4t+10)(3t+5)
(b+4)(b-4)605×595
(x+1)(x-1)(5a+1)(5a-1)
(4x+9y)(4x-9y)(a+4b)(a-4b)
(-3x+9y)(-3x-9y)(9+4y)(-9+4y)
(s+10)(s-10)-(s+8)(s+8)(t+4)(t-4)-(2t+1)(4t-3)
(t+1)(t-1)75×65
(c+9)(c-9)(7a+b)(7a-b)
(9x+2y)(9x-2y)(a+b)(a-b)
(x+8y)(x-8y)(7+7y)(-7+7y)
(y+3)(y-3)+(y-5)(y-8)(2y+2)(2y-2)-(2y-4)(2y-1)
(y+10)(y-10)85×75
(6s+2)(6s-2)(-8a+b)(-8a-b)
(x+y)(x-y)(8a+b)(8a-b)
(5x+4y)(5x-4y)(7+y)(-7+y)
(s+5)(s-5)+(s+4)(s+1)(10t+10)(10t-10)-(4t+2)(2t-1)
(y+8)(y-8)205×195
(y+10)(y-10)(-9a+b)(-9a-b)
(5x+4y)(5x-4y)(a+b)(a-b)
(-4x+7y)(-4x-7y)(6x+y)(-6x+y)
(t+2)(t-2)-(t-2)(t+3)(2y+7)(2y-7)-(4y-5)(2y+1)
(y+3)(y-3)304×296
(4t+6)(4t-6)(-a+b)(-a-b)
(x+y)(x-y)(a+b)(a-b)
(-7x+y)(-7x-y)(4x+2y)(-4x+2y)
(x+6)(x-6)-(x-6)(x-1)(8y+3)(8y-3)-(4y-1)(3y-1)
(t+9)(t-9)91×89
(2s+2)(2s-2)(-a+9b)(-a-9b)
(x+2y)(x-2y)(3a+b)(3a-b)
(-5x+y)(-5x-y)(5x+y)(-5x+y)
(c+10)(c-10)+(c-3)(c-1)(y+5)(y-5)-(2y+1)(4y-3)
(c+9)(c-9)604×596
(2b+8)(2b-8)(-6a+9b)(-6a-9b)
(x+y)(x-y)(8a+b)(8a-b)
(9x+9y)(9x-9y)(7+5y)(-7+5y)
(c+5)(c-5)+(c-6)(c-5)(s+5)(s-5)+(4s+7)(3s+7)
(b+9)(b-9)82×78
(2x+6)(2x-6)(-3a+8)(-3a-8)
(5x+6y)(5x-6y)(a+b)(a-b)
(x+3y)(x-3y)(9x+y)(-9x+y)
(b+9)(b-9)-(b-5)(b-7)(x+5)(x-5)-(2x-3)(4x-8)
(y+8)(y-8)92×88
(c+5)(c-5)(4a+2)(4a-2)
(x+y)(x-y)(10+8b)(10-8b)
(-7x+y)(-7x-y)(8+4y)(-8+4y)
(c+9)(c-9)+(c-9)(c+9)(8s+9)(8s-9)+(2s-2)(2s+9)
(s+1)(s-1)74×66
(3s+3)(3s-3)(5a+b)(5a-b)
(x+5y)(x-5y)(4+b)(4-b)
(x+4y)(x-4y)(3+y)(-3+y)
(x+9)(x-9)-(x-5)(x+8)(4x+4)(4x-4)+(2x+10)(2x-9)
(a+4)(a-4)703×697
(5y+8)(5y-8)(-7a+2)(-7a-2)
(6x+7y)(6x-7y)(5+5b)(5-5b)
(5x+y)(5x-y)(8+y)(-8+y)
(t+3)(t-3)+(t+3)(t+1)(y+4)(y-4)+(2y-6)(4y-1)
(a+9)(a-9)604×596
(4s+5)(4s-5)(a+9b)(a-9b)
(x+y)(x-y)(7+b)(7-b)
(x+5y)(x-5y)(4+5y)(-4+5y)
(b+10)(b-10)+(b+7)(b-8)(a+9)(a-9)+(4a-4)(3a-9)
(y+6)(y-6)84×76
(b+3)(b-3)(-5a+b)(-5a-b)
(x+y)(x-y)(6+8b)(6-8b)
(-x+y)(-x-y)(3x+6y)(-3x+6y)
(a+7)(a-7)-(a-3)(a-6)(5y+9)(5y-9)+(2y+5)(3y-6)
(x+4)(x-4)705×695
(c+4)(c-4)(-a+3b)(-a-3b)
(7x+y)(7x-y)(7+2b)(7-2b)
(-x+y)(-x-y)(6x+y)(-6x+y)
(a+6)(a-6)-(a-5)(a-1)(6a+1)(6a-1)-(2a+10)(2a-4)
(a+10)(a-10)402×398
(c+2)(c-2)(-a+1)(-a-1)
(4x+y)(4x-y)(9a+9b)(9a-9b)
(2x+y)(2x-y)(x+y)(-x+y)
(b+4)(b-4)-(b-8)(b+2)(x+3)(x-3)-(4x-1)(4x+9)
(x+7)(x-7)802×798
(9b+10)(9b-10)(-a+b)(-a-b)
(9x+4y)(9x-4y)(a+2b)(a-2b)
(x+y)(x-y)(4+2y)(-4+2y)
(s+5)(s-5)+(s-1)(s+7)(x+8)(x-8)+(2x-1)(2x-1)
(c+4)(c-4)53×47
(2b+6)(2b-6)(-a+2)(-a-2)
(x+y)(x-y)(5a+b)(5a-b)
(-2x+7y)(-2x-7y)(9x+6y)(-9x+6y)
(c+5)(c-5)-(c-2)(c+6)(8t+5)(8t-5)-(4t+3)(4t-8)
(s+3)(s-3)205×195
(c+4)(c-4)(-4a+6)(-4a-6)
(x+4y)(x-4y)(2+b)(2-b)
(-x+5y)(-x-5y)(6+2y)(-6+2y)
(b+10)(b-10)-(b-2)(b-3)(a+6)(a-6)-(3a+3)(2a+9)
(b+5)(b-5)302×298
(7a+4)(7a-4)(-a+6b)(-a-6b)
(4x+y)(4x-y)(3+3b)(3-3b)
(-x+y)(-x-y)(6x+y)(-6x+y)
(x+7)(x-7)+(x+5)(x+5)(2y+8)(2y-8)-(4y+4)(2y-10)
(t+10)(t-10)501×499
(2b+3)(2b-3)(-4a+1)(-4a-1)
(6x+9y)(6x-9y)(6+b)(6-b)
(2x+9y)(2x-9y)(2+y)(-2+y)
(s+8)(s-8)-(s+5)(s+2)(t+6)(t-6)+(2t-2)(3t+7)
(c+3)(c-3)704×696
(y+8)(y-8)(-a+b)(-a-b)
(6x+7y)(6x-7y)(4+b)(4-b)
(3x+3y)(3x-3y)(3+5y)(-3+5y)
(x+6)(x-6)+(x+8)(x+7)(x+9)(x-9)-(2x-9)(3x
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