人教版八年级数学上册乘法公式综合练习题精选51Word文档格式.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51Word文档格式.docx

(9x+4y)(9x-4y)(2a+4b)(2a-4b)

(5x+7y)(5x-7y)(x+6y)(-x+6y)

(a+2)(a-2)+(a-8)(a+2)(x+3)(x-3)-(2x+10)(3x+3)

(a+8)(a-8)55×

45

(y+9)(y-9)(-a+9)(-a-9)

(4x+6y)(4x-6y)(7+9b)(7-9b)

(3x+9y)(3x-9y)(x+2y)(-x+2y)

(a+5)(a-5)-(a+4)(a-9)(10t+8)(10t-8)+(4t-1)(4t+7)

(c+6)(c-6)94×

86

(y+8)(y-8)(2a+5)(2a-5)

(7x+8y)(7x-8y)(a+b)(a-b)

(-x+9y)(-x-9y)(x+y)(-x+y)

(s+2)(s-2)+(s-9)(s+9)(t+6)(t-6)-(2t-2)(2t+5)

(x+9)(x-9)301×

299

(b+4)(b-4)(8a+9b)(8a-9b)

(4x+3y)(4x-3y)(a+9b)(a-9b)

(x+3y)(x-3y)(4+y)(-4+y)

(a+7)(a-7)-(a-4)(a+8)(4s+6)(4s-6)-(2s-10)(3s-4)

(b+8)(b-8)72×

68

(2y+3)(2y-3)(4a+9b)(4a-9b)

(8x+y)(8x-y)(a+b)(a-b)

(-x+y)(-x-y)(8x+6y)(-8x+6y)

(a+7)(a-7)+(a+5)(a-4)(t+7)(t-7)+(2t+9)(3t+10)

(b+10)(b-10)101×

99

(s+7)(s-7)(5a+4b)(5a-4b)

(x+y)(x-y)(10+8b)(10-8b)

(-3x+6y)(-3x-6y)(4x+y)(-4x+y)

(a+5)(a-5)-(a-6)(a+3)(c+4)(c-4)+(4c+8)(3c-2)

(t+6)(t-6)34×

26

(4c+2)(4c-2)(-8a+3)(-8a-3)

(4x+5y)(4x-5y)(6+2b)(6-2b)

(-6x+6y)(-6x-6y)(7x+5y)(-7x+5y)

(x+2)(x-2)-(x-2)(x+4)(3c+6)(3c-6)-(3c+1)(4c+2)

(a+10)(a-10)42×

38

(c+10)(c-10)(9a+6)(9a-6)

(x+y)(x-y)(10+b)(10-b)

(x+y)(x-y)(2x+y)(-2x+y)

(s+9)(s-9)+(s-5)(s-1)(8c+9)(8c-9)-(2c-8)(4c+1)

(x+8)(x-8)62×

58

(4x+10)(4x-10)(3a+6)(3a-6)

(x+4y)(x-4y)(3a+b)(3a-b)

(x+4y)(x-4y)(5x+y)(-5x+y)

(s+1)(s-1)+(s+7)(s-6)(3c+2)(3c-2)-(2c+4)(3c-7)

(c+8)(c-8)73×

67

(2x+3)(2x-3)(a+1)(a-1)

(x+y)(x-y)(2+b)(2-b)

(-5x+2y)(-5x-2y)(7+5y)(-7+5y)

(a+3)(a-3)-(a-5)(a-7)(10b+2)(10b-2)+(3b+2)(4b-8)

(y+7)(y-7)62×

(s+10)(s-10)(9a+5)(9a-5)

(x+3y)(x-3y)(a+b)(a-b)

(x+y)(x-y)(5+y)(-5+y)

(a+6)(a-6)-(a-8)(a-8)(9t+1)(9t-1)-(3t-3)(2t-5)

(b+6)(b-6)62×

(3a+8)(3a-8)(-a+5)(-a-5)

(x+4y)(x-4y)(5+9b)(5-9b)

(x+9y)(x-9y)(6x+y)(-6x+y)

(y+1)(y-1)-(y-2)(y-3)(3b+8)(3b-8)+(2b-7)(4b+1)

(y+10)(y-10)303×

297

(s+3)(s-3)(3a+1)(3a-1)

(8x+2y)(8x-2y)(5+b)(5-b)

(6x+3y)(6x-3y)(10+9y)(-10+9y)

(x+6)(x-6)-(x-5)(x+1)(2t+10)(2t-10)-(2t-6)(4t+4)

(b+10)(b-10)803×

797

(x+2)(x-2)(a+6)(a-6)

(-2x+7y)(-2x-7y)(2+7y)(-2+7y)

(s+10)(s-10)+(s+2)(s+4)(c+4)(c-4)-(2c+3)(4c-8)

(a+6)(a-6)405×

395

(c+4)(c-4)(3a+9)(3a-9)

(x+2y)(x-2y)(7+6b)(7-6b)

(5x+y)(5x-y)(x+5y)(-x+5y)

(s+6)(s-6)+(s-3)(s-7)(t+2)(t-2)+(2t+4)(4t-3)

(b+1)(b-1)81×

79

(a+1)(a-1)(-9a+b)(-9a-b)

(6x+8y)(6x-8y)(1+5b)(1-5b)

(-5x+y)(-5x-y)(7+3y)(-7+3y)

(c+2)(c-2)+(c+3)(c-5)(c+9)(c-9)+(2c-9)(3c-2)

(a+9)(a-9)84×

76

(3b+4)(3b-4)(9a+6)(9a-6)

(x+5y)(x-5y)(a+7b)(a-7b)

(6x+y)(6x-y)(x+y)(-x+y)

(t+1)(t-1)-(t-6)(t-3)(x+4)(x-4)+(4x+4)(3x+10)

(t+6)(t-6)35×

25

(b+9)(b-9)(-a+5)(-a-5)

(x+9y)(x-9y)(5+b)(5-b)

(-x+9y)(-x-9y)(8+2y)(-8+2y)

(t+4)(t-4)+(t+4)(t+9)(b+3)(b-3)+(4b+2)(4b-7)

(t+10)(t-10)34×

(7y+9)(7y-9)(4a+3)(4a-3)

(x+y)(x-y)(6a+b)(6a-b)

(-x+8y)(-x-8y)(9+y)(-9+y)

(b+9)(b-9)+(b-6)(b-4)(t+4)(t-4)+(3t-8)(4t-10)

(b+10)(b-10)31×

29

(b+3)(b-3)(a+b)(a-b)

(7x+y)(7x-y)(5+4b)(5-4b)

(7x+8y)(7x-8y)(8x+2y)(-8x+2y)

(c+1)(c-1)+(c-1)(c-4)(s+10)(s-10)+(3s-3)(3s+10)

(b+8)(b-8)205×

(s+7)(s-7)(-7a+3b)(-7a-3b)

(x+9y)(x-9y)(a+2b)(a-2b)

(x+y)(x-y)(3x+5y)(-3x+5y)

(t+5)(t-5)-(t-9)(t-4)(b+7)(b-7)-(3b-7)(2b-8)

(y+6)(y-6)62×

(3a+2)(3a-2)(-a+8)(-a-8)

(7x+y)(7x-y)(7+6b)(7-6b)

(x+6y)(x-6y)(2+y)(-2+y)

(x+1)(x-1)-(x-8)(x-3)(a+10)(a-10)-(3a-2)(2a+4)

(y+8)(y-8)75×

65

(6s+9)(6s-9)(7a+b)(7a-b)

(x+y)(x-y)(x+9y)(-x+9y)

(a+3)(a-3)-(a-4)(a-8)(2s+3)(2s-3)-(3s-3)(2s+6)

(x+4)(x-4)45×

35

(b+10)(b-10)(9a+3)(9a-3)

(x+4y)(x-4y)(10+b)(10-b)

(x+9y)(x-9y)(x+8y)(-x+8y)

(a+1)(a-1)+(a+8)(a-5)(y+5)(y-5)-(3y-6)(2y-8)

(t+1)(t-1)503×

(y+9)(y-9)(a+b)(a-b)

(x+7y)(x-7y)(7a+8b)(7a-8b)

(x+6y)(x-6y)(x+y)(-x+y)

(x+4)(x-4)-(x-1)(x+6)(7c+8)(7c-8)+(2c-9)(2c+7)

(a+6)(a-6)64×

56

(a+6)(a-6)(-a+6)(-a-6)

(-x+7y)(-x-7y)(2x+3y)(-2x+3y)

(s+9)(s-9)+(s-9)(s-7)(2c+7)(2c-7)-(3c+3)(2c-4)

(b+10)(b-10)603×

597

(2s+8)(2s-8)(-2a+5)(-2a-5)

(3x+4y)(3x-4y)(3+

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