初一数学下册平方差公式专项练习 8.docx
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初一数学下册平方差公式专项练习 8.docx
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初一数学下册平方差公式专项练习8
(9x+8)(9x-8)(7x-4y)(7x+4y)
(-6x+2)(-6x-2)(9a-5b)(9a+5b)
(10-5a)(10+5a)(0.2x+0.6)(0.2x-0.6)
(3m-2n)(3m+2n)+7n2(-8k+8)(-8k-8)
(4x+1)(4x-1)(x-7y)(x+7y)
(8+4x)(8-4x)7x2+(y+2x)(y-2x)
(6-7a)(6+7a)(0.3x+0.6)(0.3x-0.6)
(a+7)(a-7)(x+6)(x-6)(x2+36)
(ab+1)(ab-1)(a+8)(a-8)(a2+64)
(-6m-3n)(-6m+3n)(an+9b)(an-9b)
(x+2y)(x-2y)(2mn-n)(2mn+n)
(y+6z)(y-6z)(-x-4y)(-x+4y)
(9x+8)(9x-8)(5x-4y)(5x+4y)
(-4x+2)(-4x-2)(2a-b)(2a+b)
(2-a)(2+a)(0.6x+1)(0.6x-1)
(9m-n)(9m+n)-3n2(-5k+7)(-5k-7)
(7x+5)(7x-5)(6x-y)(6x+y)
(8+2x)(8-2x)6x2+(y+3x)(y-3x)
(1-3a)(1+3a)(0.4x+0.2)(0.4x-0.2)
(a+2)(a-2)(x+4)(x-4)(x2+16)
(ab+9)(ab-9)(a+8)(a-8)(a2+64)
(-6m-2n)(-6m+2n)(an+9b)(an-9b)
(x+2y)(x-2y)(8mn-3n)(8mn+3n)
(y+8z)(y-8z)(-9x-y)(-9x+y)
(5x+7)(5x-7)(7x-y)(7x+y)
(-8x+6)(-8x-6)(6a-3b)(6a+3b)
(10-8a)(10+8a)(0.4x+0.1)(0.4x-0.1)
(6m-2n)(6m+2n)+2n2(-2k+7)(-2k-7)
(x+8)(x-8)(6x-7y)(6x+7y)
(1+3x)(1-3x)4x2-(y+5x)(y-5x)
(9-5a)(9+5a)(0.3x+0.4)(0.3x-0.4)
(a+4)(a-4)(x+5)(x-5)(x2+25)
(ab+1)(ab-1)(a+1)(a-1)(a2+1)
(-m-4n)(-m+4n)(an+3b)(an-3b)
(x+5y)(x-5y)(7mn-4n)(7mn+4n)
(y+5z)(y-5z)(-2x-4y)(-2x+4y)
(4x+2)(4x-2)(9x-6y)(9x+6y)
(-2x+4)(-2x-4)(8a-3b)(8a+3b)
(1-a)(1+a)(0.3x+0.5)(0.3x-0.5)
(6m-n)(6m+n)+8n2(-7k+3)(-7k-3)
(9x+1)(9x-1)(5x-6y)(5x+6y)
(10+2x)(10-2x)9x2-(y+2x)(y-2x)
(4-a)(4+a)(0.6x+0.7)(0.6x-0.7)
(a+8)(a-8)(x+8)(x-8)(x2+64)
(ab+2)(ab-2)(a+3)(a-3)(a2+9)
(-6m-n)(-6m+n)(an+5b)(an-5b)
(x+9y)(x-9y)(9mn-3n)(9mn+3n)
(y+7z)(y-7z)(-3x-5y)(-3x+5y)
(6x+4)(6x-4)(3x-8y)(3x+8y)
(-2x+3)(-2x-3)(4a-3b)(4a+3b)
(5-9a)(5+9a)(0.5x+0.9)(0.5x-0.9)
(7m-5n)(7m+5n)-4n2(-4k+2)(-4k-2)
(9x+8)(9x-8)(9x-8y)(9x+8y)
(9+8x)(9-8x)3x2+(y+4x)(y-4x)
(1-9a)(1+9a)(0.4x+0.7)(0.4x-0.7)
(a+7)(a-7)(x+9)(x-9)(x2+81)
(ab+9)(ab-9)(a+6)(a-6)(a2+36)
(-3m-5n)(-3m+5n)(an+4b)(an-4b)
(x+7y)(x-7y)(9mn-4n)(9mn+4n)
(y+5z)(y-5z)(-8x-3y)(-8x+3y)
(x+10)(x-10)(x-9y)(x+9y)
(-x+1)(-x-1)(2a-4b)(2a+4b)
(3-a)(3+a)(0.6x+0.9)(0.6x-0.9)
(5m-5n)(5m+5n)+3n2(-7k+6)(-7k-6)
(8x+4)(8x-4)(2x-7y)(2x+7y)
(2+9x)(2-9x)3x2-(y+3x)(y-3x)
(3-7a)(3+7a)(0.3x+0.4)(0.3x-0.4)
(a+1)(a-1)(x+3)(x-3)(x2+9)
(ab+2)(ab-2)(a+1)(a-1)(a2+1)
(-6m-n)(-6m+n)(an+8b)(an-8b)
(x+4y)(x-4y)(6mn-2n)(6mn+2n)
(y+4z)(y-4z)(-9x-2y)(-9x+2y)
(7x+3)(7x-3)(5x-5y)(5x+5y)
(-5x+4)(-5x-4)(9a-5b)(9a+5b)
(2-a)(2+a)(0.8x+0.7)(0.8x-0.7)
(2m-4n)(2m+4n)-9n2(-2k+3)(-2k-3)
(6x+2)(6x-2)(3x-9y)(3x+9y)
(9+6x)(9-6x)5x2-(y+6x)(y-6x)
(4-9a)(4+9a)(0.4x+0.9)(0.4x-0.9)
(a+9)(a-9)(x+9)(x-9)(x2+81)
(ab+10)(ab-10)(a+2)(a-2)(a2+4)
(-m-3n)(-m+3n)(an+2b)(an-2b)
(x+3y)(x-3y)(4mn-4n)(4mn+4n)
(y+4z)(y-4z)(-7x-y)(-7x+y)
(9x+3)(9x-3)(5x-4y)(5x+4y)
(-9x+7)(-9x-7)(7a-2b)(7a+2b)
(7-4a)(7+4a)(0.1x+1)(0.1x-1)
(4m-3n)(4m+3n)-4n2(-2k+3)(-2k-3)
(6x+6)(6x-6)(6x-6y)(6x+6y)
(2+9x)(2-9x)2x2+(y+4x)(y-4x)
(2-4a)(2+4a)(0.6x+0.7)(0.6x-0.7)
(a+9)(a-9)(x+9)(x-9)(x2+81)
(ab+5)(ab-5)(a+4)(a-4)(a2+16)
(-8m-4n)(-8m+4n)(an+4b)(an-4b)
(x+4y)(x-4y)(4mn-n)(4mn+n)
(y+7z)(y-7z)(-9x-4y)(-9x+4y)
(9x+10)(9x-10)(3x-3y)(3x+3y)
(-9x+9)(-9x-9)(4a-5b)(4a+5b)
(6-7a)(6+7a)(0.8x+0.5)(0.8x-0.5)
(5m-3n)(5m+3n)-9n2(-9k+4)(-9k-4)
(7x+2)(7x-2)(8x-5y)(8x+5y)
(8+2x)(8-2x)4x2+(y+6x)(y-6x)
(4-3a)(4+3a)(0.7x+1)(0.7x-1)
(a+2)(a-2)(x+9)(x-9)(x2+81)
(ab+5)(ab-5)(a+5)(a-5)(a2+25)
(-6m-2n)(-6m+2n)(an+8b)(an-8b)
(x+2y)(x-2y)(2mn-n)(2mn+n)
(y+7z)(y-7z)(-x-2y)(-x+2y)
(x+9)(x-9)(6x-8y)(6x+8y)
(-x+3)(-x-3)(4a-5b)(4a+5b)
(4-5a)(4+5a)(0.2x+0.9)(0.2x-0.9)
(8m-n)(8m+n)+5n2(-k+3)(-k-3)
(5x+10)(5x-10)(4x-3y)(4x+3y)
(7+9x)(7-9x)3x2+(y+2x)(y-2x)
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