初一数学下册平方差公式专项练习 25文档格式.docx
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(7x+5)(7x-5)(3x-3y)(3x+3y)
(7+3x)(7-3x)7x2+(y+2x)(y-2x)
(4-9a)(4+9a)(0.6x+0.3)(0.6x-0.3)
(a+8)(a-8)(x+1)(x-1)(x2+1)
(ab+6)(ab-6)(a+4)(a-4)(a2+16)
(-6m-2n)(-6m+2n)(an+3b)(an-3b)
(x+6y)(x-6y)(2mn-n)(2mn+n)
(y+8z)(y-8z)(-6x-3y)(-6x+3y)
(6x+5)(6x-5)(x-8y)(x+8y)
(-5x+8)(-5x-8)(6a-2b)(6a+2b)
(1-10a)(1+10a)(0.9x+0.8)(0.9x-0.8)
(4m-2n)(4m+2n)+2n2(-5k+9)(-5k-9)
(6x+2)(6x-2)(3x-8y)(3x+8y)
(1+9x)(1-9x)6x2-(y+4x)(y-4x)
(7-4a)(7+4a)(0.3x+0.1)(0.3x-0.1)
(a+5)(a-5)(x+6)(x-6)(x2+36)
(ab+5)(ab-5)(a+6)(a-6)(a2+36)
(-9m-3n)(-9m+3n)(an+7b)(an-7b)
(x+7y)(x-7y)(5mn-n)(5mn+n)
(y+5z)(y-5z)(-x-2y)(-x+2y)
(9x+7)(9x-7)(x-y)(x+y)
(-3x+4)(-3x-4)(9a-2b)(9a+2b)
(7-6a)(7+6a)(0.6x+0.9)(0.6x-0.9)
(3m-4n)(3m+4n)-7n2(-2k+5)(-2k-5)
(9x+3)(9x-3)(9x-6y)(9x+6y)
(2+7x)(2-7x)8x2-(y+5x)(y-5x)
(10-2a)(10+2a)(0.1x+0.8)(0.1x-0.8)
(a+4)(a-4)(x+1)(x-1)(x2+1)
(ab+1)(ab-1)(a+2)(a-2)(a2+4)
(-6m-4n)(-6m+4n)(an+4b)(an-4b)
(x+7y)(x-7y)(3mn-2n)(3mn+2n)
(y+5z)(y-5z)(-x-5y)(-x+5y)
(5x+3)(5x-3)(7x-7y)(7x+7y)
(-2x+6)(-2x-6)(9a-4b)(9a+4b)
(3-9a)(3+9a)(0.6x+0.4)(0.6x-0.4)
(2m-5n)(2m+5n)-3n2(-9k+2)(-9k-2)
(6x+1)(6x-1)(5x-4y)(5x+4y)
(6+x)(6-x)3x2+(y+4x)(y-4x)
(3-6a)(3+6a)(0.8x+0.8)(0.8x-0.8)
(a+1)(a-1)(x+6)(x-6)(x2+36)
(ab+3)(ab-3)(a+9)(a-9)(a2+81)
(-3m-2n)(-3m+2n)(an+6b)(an-6b)
(x+6y)(x-6y)(mn-n)(mn+n)
(y+5z)(y-5z)(-3x-4y)(-3x+4y)
(2x+9)(2x-9)(4x-y)(4x+y)
(-x+3)(-x-3)(4a-4b)(4a+4b)
(4-5a)(4+5a)(0.7x+0.7)(0.7x-0.7)
(2m-3n)(2m+3n)+7n2(-9k+8)(-9k-8)
(8x+6)(8x-6)(2x-y)(2x+y)
(4+6x)(4-6x)9x2+(y+4x)(y-4x)
(8-a)(8+a)(0.3x+0.6)(0.3x-0.6)
(a+8)(a-8)(x+6)(x-6)(x2+36)
(ab+3)(ab-3)(a+5)(a-5)(a2+25)
(-8m-5n)(-8m+5n)(an+6b)(an-6b)
(x+4y)(x-4y)(7mn-4n)(7mn+4n)
(y+2z)(y-2z)(-6x-y)(-6x+y)
(3x+3)(3x-3)(7x-6y)(7x+6y)
(-5x+9)(-5x-9)(2a-4b)(2a+4b)
(8-5a)(8+5a)(0.5x+0.8)(0.5x-0.8)
(9m-3n)(9m+3n)-7n2(-2k+3)(-2k-3)
(7x+3)(7x-3)(x-8y)(x+8y)
(2+8x)(2-8x)7x2-(y+6x)(y-6x)
(10-10a)(10+10a)(0.7x+0.7)(0.7x-0.7)
(a+3)(a-3)(x+9)(x-9)(x2+81)
(ab+8)(ab-8)(a+5)(a-5)(a2+25)
(-2m-4n)(-2m+4n)(an+4b)(an-4b)
(x+4y)(x-4y)(9mn-4n)(9mn+4n)
(y+8z)(y-8z)(-x-3y)(-x+3y)
(6x+6)(6x-6)(2x-9y)(2x+9y)
(-2x+8)(-2x-8)(5a-3b)(5a+3b)
(3-4a)(3+4a)(0.1x+1)(0.1x-1)
(2m-4n)(2m+4n)-2n2(-7k+8)(-7k-8)
(3x+7)(3x-7)(6x-8y)(6x+8y)
(5+10x)(5-10x)5x2+(y+6x)(y-6x)
(2-4a)(2+4a)(0.5x+0.5)(0.5x-0.5)
(a+7)(a-7)(x+5)(x-5)(x2+25)
(ab+5)(ab-5)(a+9)(a-9)(a2+81)
(-3m-3n)(-3m+3n)(an+2b)(an-2b)
(x+7y)(x-7y)(5mn-5n)(5mn+5n)
(y+8z)(y-8z)(-8x-y)(-8x+y)
(5x+2)(5x-2)(2x-y)(2x+y)
(-x+4)(-x-4)(8a-5b)(8a+5b)
(1-10a)(1+10a)(0.6x+0.6)(0.6x-0.6)
(m-5n)(m+5n)-2n2(-4k+3)(-4k-3)
(3x+4)(3x-4)(6x-y)(6x+y)
(6+4x)(6-4x)5x2+(y+2x)(y-2x)
(7-8a)(7+8a)(0.9x+0.8)(0.9x-0.8)
(a+5)(a-5)(x+5)(x-5)(x2+25)
(ab+9)(ab-9)(a+3)(a-3)(a2+9)
(-3m-3n)(-3m+3n)(an+8b)(an-8b)
(x+2y)(x-2y)(5mn-4n)(5mn+4n)
(y+7z)(y-7z)(-3x-3y)(-3x+3y)
(6x+7)(6x-7)(8x-5y)(8x+5y)
(-5x+3)(-5x-3)(4a-b)(4a+b)
(5-5a)(5+5a)(0.8x+0.2)(0.8x-0.2)
(8m-3n)(8m+3n)+7n2(-3k+2)(-3k-2)
(6x+9)(6x-9)(2x-5y)(2x+5y)
(3+2x)(3-2x)2x2-(y+3x)(y-3x)
(5-3a)(5+3a)(0.1x+0.3)(0.1x-0.3)
(a+3)(a-3)(x+3)(x-3)(x2+9)
(ab+7)(ab-7)(a+1)(a-1)(a2+1)
(-m-n)(-m+n)(an+6b)(an-6b)
(x+8y)(x-8y)(6mn-3n)(6mn+3n)
(y+3z)(y-3z)(-2x-5y)(-2x+5y)