初一数学下册平方差公式专项练习 70Word文件下载.docx
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初一数学下册平方差公式专项练习 70Word文件下载.docx
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(x+8y)(x-8y)(8mn-n)(8mn+n)
(y+4z)(y-4z)(-6x-4y)(-6x+4y)
(5x+3)(5x-3)(7x-5y)(7x+5y)
(-5x+7)(-5x-7)(2a-b)(2a+b)
(2-9a)(2+9a)(0.1x+0.4)(0.1x-0.4)
(7m-n)(7m+n)-2n2(-7k+8)(-7k-8)
(5x+3)(5x-3)(4x-3y)(4x+3y)
(1+7x)(1-7x)2x2+(y+4x)(y-4x)
(1-6a)(1+6a)(0.9x+0.2)(0.9x-0.2)
(a+4)(a-4)(x+8)(x-8)(x2+64)
(ab+3)(ab-3)(a+7)(a-7)(a2+49)
(-9m-2n)(-9m+2n)(an+4b)(an-4b)
(x+4y)(x-4y)(mn-3n)(mn+3n)
(y+3z)(y-3z)(-4x-2y)(-4x+2y)
(7x+1)(7x-1)(x-8y)(x+8y)
(-5x+10)(-5x-10)(5a-b)(5a+b)
(9-6a)(9+6a)(0.5x+0.3)(0.5x-0.3)
(8m-5n)(8m+5n)+7n2(-7k+10)(-7k-10)
(3x+6)(3x-6)(7x-y)(7x+y)
(4+10x)(4-10x)3x2+(y+3x)(y-3x)
(10-6a)(10+6a)(0.5x+0.1)(0.5x-0.1)
(ab+2)(ab-2)(a+8)(a-8)(a2+64)
(-4m-2n)(-4m+2n)(an+b)(an-b)
(x+5y)(x-5y)(8mn-3n)(8mn+3n)
(y+6z)(y-6z)(-6x-3y)(-6x+3y)
(9x+9)(9x-9)(7x-6y)(7x+6y)
(-5x+3)(-5x-3)(a-b)(a+b)
(9-a)(9+a)(0.2x+0.3)(0.2x-0.3)
(2m-4n)(2m+4n)+5n2(-7k+7)(-7k-7)
(4x+4)(4x-4)(4x-y)(4x+y)
(2+6x)(2-6x)6x2-(y+5x)(y-5x)
(6-4a)(6+4a)(0.3x+0.8)(0.3x-0.8)
(a+4)(a-4)(x+4)(x-4)(x2+16)
(ab+4)(ab-4)(a+9)(a-9)(a2+81)
(-5m-3n)(-5m+3n)(an+3b)(an-3b)
(x+4y)(x-4y)(3mn-3n)(3mn+3n)
(y+9z)(y-9z)(-5x-2y)(-5x+2y)
(3x+8)(3x-8)(9x-6y)(9x+6y)
(-6x+7)(-6x-7)(6a-b)(6a+b)
(2-3a)(2+3a)(0.4x+1)(0.4x-1)
(m-5n)(m+5n)+7n2(-8k+3)(-8k-3)
(6x+2)(6x-2)(9x-2y)(9x+2y)
(9+7x)(9-7x)7x2+(y+3x)(y-3x)
(10-9a)(10+9a)(0.8x+1)(0.8x-1)
(a+6)(a-6)(x+4)(x-4)(x2+16)
(ab+5)(ab-5)(a+4)(a-4)(a2+16)
(-6m-3n)(-6m+3n)(an+9b)(an-9b)
(x+7y)(x-7y)(2mn-n)(2mn+n)
(y+2z)(y-2z)(-4x-3y)(-4x+3y)
(7x+9)(7x-9)(6x-7y)(6x+7y)
(-8x+9)(-8x-9)(4a-3b)(4a+3b)
(8-a)(8+a)(0.9x+0.7)(0.9x-0.7)
(4m-2n)(4m+2n)+9n2(-3k+4)(-3k-4)
(3x+1)(3x-1)(9x-4y)(9x+4y)
(9+7x)(9-7x)5x2+(y+6x)(y-6x)
(6-a)(6+a)(0.2x+0.6)(0.2x-0.6)
(a+5)(a-5)(x+7)(x-7)(x2+49)
(ab+4)(ab-4)(a+4)(a-4)(a2+16)
(-9m-4n)(-9m+4n)(an+3b)(an-3b)
(x+9y)(x-9y)(5mn-5n)(5mn+5n)
(y+6z)(y-6z)(-3x-4y)(-3x+4y)
(7x+10)(7x-10)(7x-8y)(7x+8y)
(-7x+6)(-7x-6)(3a-3b)(3a+3b)
(4-6a)(4+6a)(0.1x+0.6)(0.1x-0.6)
(2m-2n)(2m+2n)-5n2(-8k+5)(-8k-5)
(5x+6)(5x-6)(3x-6y)(3x+6y)
(1+6x)(1-6x)8x2-(y+5x)(y-5x)
(5-9a)(5+9a)(0.2x+0.2)(0.2x-0.2)
(a+9)(a-9)(x+3)(x-3)(x2+9)
(ab+8)(ab-8)(a+1)(a-1)(a2+1)
(-6m-3n)(-6m+3n)(an+b)(an-b)
(x+7y)(x-7y)(4mn-4n)(4mn+4n)
(y+5z)(y-5z)(-x-5y)(-x+5y)
(7x+7)(7x-7)(6x-9y)(6x+9y)
(-x+7)(-x-7)(a-2b)(a+2b)
(8-2a)(8+2a)(0.1x+0.3)(0.1x-0.3)
(6m-4n)(6m+4n)-7n2(-4k+3)(-4k-3)
(3x+8)(3x-8)(8x-4y)(8x+4y)
(6+3x)(6-3x)4x2-(y+2x)(y-2x)
(9-2a)(9+2a)(0.9x+0.6)(0.9x-0.6)
(a+3)(a-3)(x+6)(x-6)(x2+36)
(ab+1)(ab-1)(a+6)(a-6)(a2+36)
(-m-n)(-m+n)(an+3b)(an-3b)
(x+7y)(x-7y)(5mn-4n)(5mn+4n)
(y+9z)(y-9z)(-8x-y)(-8x+y)
(4x+9)(4x-9)(3x-y)(3x+y)
(-6x+8)(-6x-8)(9a-3b)(9a+3b)
(4-5a)(4+5a)(0.6x+0.1)(0.6x-0.1)
(9m-n)(9m+n)-6n2(-8k+5)(-8k-5)
(4x+1)(4x-1)(8x-y)(8x+y)
(1+5x)(1-5x)5x2+(y+5x)(y-5x)
(5-9a)(5+9a)(0.2x+0.8)(0.2x-0.8)
(a+5)(a-5)(x+6)(x-6)(x2+36)
(-4m-2n)(-4m+2n)(an+2b)(an-2b)
(x+2y)(x-2y)(4mn-2n)(4mn+2n)
(y+7z)(y-7z)(-3x-y)(-3x+y)
(8x+6)(8x-6)(2x-3y)(2x+3y)
(-6x+6)(-6x-6)(9a-b)(9a+b)
(6-a)(6+a)(0.4x+0.7)(0.4x-0.7)
(m-n)(m+n)+2n2(-5k+8)(-5k-8)
(5x+3)(5x-3)(5x-9y)(5x+9y)
(3+5x)(3-5x)6x2-(y+2x)(y-2x)
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