初一数学下册平方差公式专项练习 77Word格式文档下载.docx

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初一数学下册平方差公式专项练习 77Word格式文档下载.docx

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初一数学下册平方差公式专项练习 77Word格式文档下载.docx

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

(10+8x)(10-8x)3x2+(y+2x)(y-2x)

(5-2a)(5+2a)(0.3x+0.5)(0.3x-0.5)

(a+7)(a-7)(x+8)(x-8)(x2+64)

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

(-7m-4n)(-7m+4n)(an+7b)(an-7b)

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

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

(7x+1)(7x-1)(3x-3y)(3x+3y)

(-3x+1)(-3x-1)(4a-4b)(4a+4b)

(2-7a)(2+7a)(0.9x+0.7)(0.9x-0.7)

(8m-3n)(8m+3n)-5n2(-k+7)(-k-7)

(4x+1)(4x-1)(2x-6y)(2x+6y)

(8+8x)(8-8x)8x2+(y+2x)(y-2x)

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

(a+9)(a-9)(x+4)(x-4)(x2+16)

(ab+10)(ab-10)(a+5)(a-5)(a2+25)

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

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

(y+2z)(y-2z)(-9x-4y)(-9x+4y)

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

(-6x+3)(-6x-3)(2a-2b)(2a+2b)

(4-3a)(4+3a)(0.2x+1)(0.2x-1)

(7m-4n)(7m+4n)-5n2(-k+2)(-k-2)

(4x+1)(4x-1)(3x-7y)(3x+7y)

(8+7x)(8-7x)4x2-(y+5x)(y-5x)

(10-2a)(10+2a)(0.5x+0.7)(0.5x-0.7)

(a+4)(a-4)(x+3)(x-3)(x2+9)

(ab+3)(ab-3)(a+5)(a-5)(a2+25)

(-7m-n)(-7m+n)(an+6b)(an-6b)

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

(y+7z)(y-7z)(-6x-4y)(-6x+4y)

(3x+2)(3x-2)(4x-6y)(4x+6y)

(-5x+10)(-5x-10)(8a-5b)(8a+5b)

(1-5a)(1+5a)(0.4x+0.7)(0.4x-0.7)

(9m-4n)(9m+4n)+7n2(-8k+3)(-8k-3)

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

(3+4x)(3-4x)5x2-(y+5x)(y-5x)

(2-a)(2+a)(0.3x+0.8)(0.3x-0.8)

(a+10)(a-10)(x+8)(x-8)(x2+64)

(ab+6)(ab-6)(a+4)(a-4)(a2+16)

(-3m-5n)(-3m+5n)(an+4b)(an-4b)

(x+2y)(x-2y)(5mn-4n)(5mn+4n)

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

(8x+1)(8x-1)(9x-2y)(9x+2y)

(-9x+7)(-9x-7)(6a-2b)(6a+2b)

(7-10a)(7+10a)(0.6x+1)(0.6x-1)

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

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

(8+6x)(8-6x)3x2+(y+2x)(y-2x)

(8-7a)(8+7a)(0.6x+0.2)(0.6x-0.2)

(a+3)(a-3)(x+8)(x-8)(x2+64)

(ab+2)(ab-2)(a+1)(a-1)(a2+1)

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

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

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

(5x+10)(5x-10)(5x-5y)(5x+5y)

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

(2-7a)(2+7a)(0.5x+0.7)(0.5x-0.7)

(8m-5n)(8m+5n)-8n2(-7k+10)(-7k-10)

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

(5+4x)(5-4x)3x2+(y+4x)(y-4x)

(6-6a)(6+6a)(0.8x+0.9)(0.8x-0.9)

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

(ab+5)(ab-5)(a+2)(a-2)(a2+4)

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

(x+7y)(x-7y)(4mn-5n)(4mn+5n)

(y+8z)(y-8z)(-2x-3y)(-2x+3y)

(9x+1)(9x-1)(7x-6y)(7x+6y)

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

(10-6a)(10+6a)(0.7x+0.2)(0.7x-0.2)

(7m-5n)(7m+5n)+7n2(-4k+3)(-4k-3)

(4x+8)(4x-8)(9x-8y)(9x+8y)

(1+7x)(1-7x)5x2+(y+4x)(y-4x)

(7-8a)(7+8a)(0.8x+1)(0.8x-1)

(a+9)(a-9)(x+6)(x-6)(x2+36)

(ab+3)(ab-3)(a+6)(a-6)(a2+36)

(-5m-3n)(-5m+3n)(an+5b)(an-5b)

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

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

(7x+8)(7x-8)(7x-9y)(7x+9y)

(-2x+9)(-2x-9)(6a-2b)(6a+2b)

(10-9a)(10+9a)(0.1x+0.3)(0.1x-0.3)

(7m-2n)(7m+2n)+8n2(-6k+6)(-6k-6)

(6x+7)(6x-7)(5x-8y)(5x+8y)

(1+7x)(1-7x)3x2+(y+5x)(y-5x)

(4-3a)(4+3a)(0.2x+0.6)(0.2x-0.6)

(a+7)(a-7)(x+2)(x-2)(x2+4)

(ab+1)(ab-1)(a+5)(a-5)(a2+25)

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

(x+4y)(x-4y)(2mn-n)(2mn+n)

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

(9x+7)(9x-7)(5x-4y)(5x+4y)

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

(6-4a)(6+4a)(0.6x+0.7)(0.6x-0.7)

(8m-2n)(8m+2n)+6n2(-5k+1)(-5k-1)

(7x+1)(7x-1)(x-9y)(x+9y)

(8+9x)(8-9x)4x2+(y+5x)(y-5x)

(3-3a)(3+3a)(0.7x+0.1)(0.7x-0.1)

(a+1)(a-1)(x+8)(x-8)(x2+64)

(ab+9)(ab-9)(a+1)(a-1)(a2+1)

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

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

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

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