初一数学下册平方差公式专项练习 49Word文档下载推荐.docx

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初一数学下册平方差公式专项练习 49Word文档下载推荐.docx

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初一数学下册平方差公式专项练习 49Word文档下载推荐.docx

(8x+4)(8x-4)(6x-3y)(6x+3y)

(1+4x)(1-4x)4x2+(y+5x)(y-5x)

(7-3a)(7+3a)(0.8x+0.3)(0.8x-0.3)

(a+6)(a-6)(x+1)(x-1)(x2+1)

(ab+3)(ab-3)(a+2)(a-2)(a2+4)

(-9m-2n)(-9m+2n)(an+2b)(an-2b)

(x+6y)(x-6y)(7mn-3n)(7mn+3n)

(y+6z)(y-6z)(-9x-2y)(-9x+2y)

(6x+3)(6x-3)(x-2y)(x+2y)

(-8x+7)(-8x-7)(2a-5b)(2a+5b)

(4-4a)(4+4a)(0.1x+0.4)(0.1x-0.4)

(5m-4n)(5m+4n)+6n2(-5k+5)(-5k-5)

(2x+4)(2x-4)(x-3y)(x+3y)

(2+10x)(2-10x)6x2-(y+3x)(y-3x)

(1-9a)(1+9a)(0.5x+0.8)(0.5x-0.8)

(a+4)(a-4)(x+6)(x-6)(x2+36)

(ab+7)(ab-7)(a+4)(a-4)(a2+16)

(-7m-5n)(-7m+5n)(an+b)(an-b)

(x+6y)(x-6y)(3mn-5n)(3mn+5n)

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

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

(-8x+2)(-8x-2)(9a-5b)(9a+5b)

(10-9a)(10+9a)(0.2x+0.7)(0.2x-0.7)

(6m-n)(6m+n)-7n2(-7k+3)(-7k-3)

(7x+3)(7x-3)(4x-3y)(4x+3y)

(3+10x)(3-10x)7x2+(y+4x)(y-4x)

(2-3a)(2+3a)(0.5x+0.1)(0.5x-0.1)

(a+1)(a-1)(x+4)(x-4)(x2+16)

(ab+8)(ab-8)(a+8)(a-8)(a2+64)

(-4m-4n)(-4m+4n)(an+5b)(an-5b)

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

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

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

(-3x+5)(-3x-5)(6a-b)(6a+b)

(3-9a)(3+9a)(0.6x+0.7)(0.6x-0.7)

(4m-n)(4m+n)+5n2(-3k+1)(-3k-1)

(3x+8)(3x-8)(7x-8y)(7x+8y)

(3+2x)(3-2x)3x2-(y+5x)(y-5x)

(5-7a)(5+7a)(0.6x+0.6)(0.6x-0.6)

(a+9)(a-9)(x+7)(x-7)(x2+49)

(ab+8)(ab-8)(a+4)(a-4)(a2+16)

(-5m-5n)(-5m+5n)(an+b)(an-b)

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

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

(x+10)(x-10)(8x-4y)(8x+4y)

(-3x+2)(-3x-2)(2a-4b)(2a+4b)

(5-2a)(5+2a)(0.1x+0.5)(0.1x-0.5)

(6m-4n)(6m+4n)-7n2(-4k+6)(-4k-6)

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

(4+9x)(4-9x)4x2+(y+5x)(y-5x)

(3-4a)(3+4a)(0.3x+0.4)(0.3x-0.4)

(a+1)(a-1)(x+9)(x-9)(x2+81)

(-3m-2n)(-3m+2n)(an+b)(an-b)

(x+9y)(x-9y)(9mn-5n)(9mn+5n)

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

(3x+5)(3x-5)(8x-4y)(8x+4y)

(-7x+5)(-7x-5)(3a-5b)(3a+5b)

(3-8a)(3+8a)(0.7x+0.5)(0.7x-0.5)

(4m-3n)(4m+3n)+7n2(-3k+7)(-3k-7)

(3x+10)(3x-10)(3x-4y)(3x+4y)

(10+2x)(10-2x)5x2-(y+3x)(y-3x)

(6-3a)(6+3a)(0.7x+0.8)(0.7x-0.8)

(a+3)(a-3)(x+9)(x-9)(x2+81)

(ab+6)(ab-6)(a+3)(a-3)(a2+9)

(-2m-n)(-2m+n)(an+b)(an-b)

(x+9y)(x-9y)(4mn-3n)(4mn+3n)

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

(8x+1)(8x-1)(4x-4y)(4x+4y)

(-7x+3)(-7x-3)(4a-4b)(4a+4b)

(10-2a)(10+2a)(0.2x+0.9)(0.2x-0.9)

(9m-5n)(9m+5n)-8n2(-6k+10)(-6k-10)

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

(4+2x)(4-2x)6x2-(y+6x)(y-6x)

(9-8a)(9+8a)(0.9x+0.4)(0.9x-0.4)

(a+3)(a-3)(x+3)(x-3)(x2+9)

(ab+1)(ab-1)(a+6)(a-6)(a2+36)

(-9m-n)(-9m+n)(an+3b)(an-3b)

(x+8y)(x-8y)(3mn-n)(3mn+n)

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

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

(-x+9)(-x-9)(3a-2b)(3a+2b)

(7-a)(7+a)(0.7x+0.8)(0.7x-0.8)

(3m-4n)(3m+4n)+5n2(-2k+1)(-2k-1)

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

(9+x)(9-x)8x2+(y+3x)(y-3x)

(4-2a)(4+2a)(0.3x+0.3)(0.3x-0.3)

(a+8)(a-8)(x+4)(x-4)(x2+16)

(-3m-n)(-3m+n)(an+3b)(an-3b)

(x+2y)(x-2y)(8mn-3n)(8mn+3n)

(y+8z)(y-8z)(-4x-2y)(-4x+2y)

(9x+2)(9x-2)(7x-y)(7x+y)

(-8x+3)(-8x-3)(3a-3b)(3a+3b)

(9-6a)(9+6a)(0.5x+0.3)(0.5x-0.3)

(7m-3n)(7m+3n)-5n2(-6k+10)(-6k-10)

(6x+2)(6x-2)(8x-5y)(8x+5y)

(5+4x)(5-4x)9x2+(y+6x)(y-6x)

(9-9a)(9+9a)(0.6x+1)(0.6x-1)

(a+7)(a-7)(x+9)(x-9)(x2+81)

(ab+2)(ab-2)(a+9)(a-9)(a2+81)

(-3m-n)(-3m+n)(an+6b)(an-6b)

(x+8y)(x-8y)(8mn-4n)(8mn+4n)

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

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