初一数学下册平方差公式专项练习 22Word文档格式.docx
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初一数学下册平方差公式专项练习 22Word文档格式.docx
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(x+8y)(x-8y)(5mn-2n)(5mn+2n)
(y+7z)(y-7z)(-2x-4y)(-2x+4y)
(2x+9)(2x-9)(6x-7y)(6x+7y)
(-9x+3)(-9x-3)(4a-2b)(4a+2b)
(5-7a)(5+7a)(0.6x+0.5)(0.6x-0.5)
(9m-2n)(9m+2n)-4n2(-3k+8)(-3k-8)
(5x+6)(5x-6)(5x-8y)(5x+8y)
(8+9x)(8-9x)5x2+(y+4x)(y-4x)
(8-7a)(8+7a)(0.3x+0.2)(0.3x-0.2)
(a+1)(a-1)(x+6)(x-6)(x2+36)
(ab+10)(ab-10)(a+7)(a-7)(a2+49)
(-4m-n)(-4m+n)(an+2b)(an-2b)
(x+6y)(x-6y)(2mn-2n)(2mn+2n)
(y+7z)(y-7z)(-8x-3y)(-8x+3y)
(2x+1)(2x-1)(9x-6y)(9x+6y)
(-8x+3)(-8x-3)(3a-2b)(3a+2b)
(9-8a)(9+8a)(0.6x+0.5)(0.6x-0.5)
(3m-3n)(3m+3n)+5n2(-2k+1)(-2k-1)
(7x+9)(7x-9)(3x-9y)(3x+9y)
(5+4x)(5-4x)3x2+(y+4x)(y-4x)
(10-2a)(10+2a)(0.3x+0.3)(0.3x-0.3)
(a+9)(a-9)(x+5)(x-5)(x2+25)
(ab+8)(ab-8)(a+1)(a-1)(a2+1)
(-2m-5n)(-2m+5n)(an+5b)(an-5b)
(x+6y)(x-6y)(2mn-5n)(2mn+5n)
(y+5z)(y-5z)(-7x-y)(-7x+y)
(2x+9)(2x-9)(4x-9y)(4x+9y)
(-9x+9)(-9x-9)(2a-2b)(2a+2b)
(9-8a)(9+8a)(0.4x+1)(0.4x-1)
(8m-4n)(8m+4n)+6n2(-7k+6)(-7k-6)
(7x+7)(7x-7)(5x-2y)(5x+2y)
(5+2x)(5-2x)4x2+(y+6x)(y-6x)
(10-3a)(10+3a)(0.6x+1)(0.6x-1)
(a+6)(a-6)(x+1)(x-1)(x2+1)
(ab+2)(ab-2)(a+3)(a-3)(a2+9)
(-2m-3n)(-2m+3n)(an+b)(an-b)
(x+3y)(x-3y)(6mn-4n)(6mn+4n)
(y+9z)(y-9z)(-3x-4y)(-3x+4y)
(2x+7)(2x-7)(8x-6y)(8x+6y)
(-5x+2)(-5x-2)(3a-2b)(3a+2b)
(10-4a)(10+4a)(0.1x+0.6)(0.1x-0.6)
(6m-2n)(6m+2n)+4n2(-k+2)(-k-2)
(3x+2)(3x-2)(6x-7y)(6x+7y)
(1+3x)(1-3x)7x2+(y+3x)(y-3x)
(3-a)(3+a)(0.8x+1)(0.8x-1)
(a+1)(a-1)(x+4)(x-4)(x2+16)
(ab+10)(ab-10)(a+2)(a-2)(a2+4)
(-3m-5n)(-3m+5n)(an+7b)(an-7b)
(x+5y)(x-5y)(4mn-4n)(4mn+4n)
(y+9z)(y-9z)(-7x-4y)(-7x+4y)
(3x+10)(3x-10)(2x-7y)(2x+7y)
(-x+4)(-x-4)(8a-b)(8a+b)
(7-8a)(7+8a)(0.8x+0.4)(0.8x-0.4)
(6m-2n)(6m+2n)+3n2(-2k+3)(-2k-3)
(7x+8)(7x-8)(7x-8y)(7x+8y)
(9+6x)(9-6x)3x2-(y+2x)(y-2x)
(9-10a)(9+10a)(0.1x+0.8)(0.1x-0.8)
(a+4)(a-4)(x+6)(x-6)(x2+36)
(ab+3)(ab-3)(a+3)(a-3)(a2+9)
(-3m-2n)(-3m+2n)(an+7b)(an-7b)
(x+9y)(x-9y)(6mn-3n)(6mn+3n)
(y+5z)(y-5z)(-7x-5y)(-7x+5y)
(5x+1)(5x-1)(2x-9y)(2x+9y)
(-5x+10)(-5x-10)(5a-4b)(5a+4b)
(2-3a)(2+3a)(0.5x+0.2)(0.5x-0.2)
(m-5n)(m+5n)+7n2(-9k+1)(-9k-1)
(3x+3)(3x-3)(4x-6y)(4x+6y)
(3+5x)(3-5x)2x2-(y+5x)(y-5x)
(1-3a)(1+3a)(0.4x+0.3)(0.4x-0.3)
(a+6)(a-6)(x+3)(x-3)(x2+9)
(ab+10)(ab-10)(a+5)(a-5)(a2+25)
(-9m-3n)(-9m+3n)(an+5b)(an-5b)
(x+9y)(x-9y)(7mn-3n)(7mn+3n)
(y+8z)(y-8z)(-2x-3y)(-2x+3y)
(3x+9)(3x-9)(5x-7y)(5x+7y)
(-4x+3)(-4x-3)(5a-3b)(5a+3b)
(2-7a)(2+7a)(0.9x+0.1)(0.9x-0.1)
(8m-2n)(8m+2n)-3n2(-7k+6)(-7k-6)
(x+4)(x-4)(2x-4y)(2x+4y)
(5+4x)(5-4x)4x2-(y+5x)(y-5x)
(2-2a)(2+2a)(0.3x+0.9)(0.3x-0.9)
(a+4)(a-4)(x+4)(x-4)(x2+16)
(ab+3)(ab-3)(a+6)(a-6)(a2+36)
(-5m-2n)(-5m+2n)(an+6b)(an-6b)
(x+8y)(x-8y)(5mn-n)(5mn+n)
(y+8z)(y-8z)(-3x-4y)(-3x+4y)
(4x+8)(4x-8)(6x-8y)(6x+8y)
(-4x+9)(-4x-9)(6a-2b)(6a+2b)
(1-a)(1+a)(0.2x+0.7)(0.2x-0.7)
(4m-4n)(4m+4n)-2n2(-8k+2)(-8k-2)
(5x+8)(5x-8)(2x-9y)(2x+9y)
(4+8x)(4-8x)5x2-(y+4x)(y-4x)
(7-8a)(7+8a)(0.8x+0.1)(0.8x-0.1)
(a+5)(a-5)(x+3)(x-3)(x2+9)
(ab+2)(ab-2)(a+2)(a-2)(a2+4)
(-6m-5n)(-6m+5n)(an+4b)(an-4b)
(x+5y)(x-5y)(2mn-2n)(2mn+2n)
(y+5z)(y-5z)(-7x-3y)(-7x+3y)
(7x+3)(7x-3)(8x-7y)(8x+7y)
(-5x+1)(-5x-1)(8a-b)(8a+b)
(9-10a)(9+10a)(0.4x+0.3)(0.4x-0.3)
(2m-5n)(2m+5n)-5n2(-7k+6)(-7k-6)
(x+9)(x-9)(2x-2y)(2x+2y)
(10+7x)(10-7x)4x2-(y+2x)(y-2x)
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