初一数学下册平方差公式专项练习 85.docx

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初一数学下册平方差公式专项练习 85.docx

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初一数学下册平方差公式专项练习 85.docx

初一数学下册平方差公式专项练习85

(4-3a)(4+3a)(0.7x+0.3)(0.7x-0.3)

(a+6)(a-6)(x+5)(x-5)(x2+25)

(ab+6)(ab-6)(a+2)(a-2)(a2+4)

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

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

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

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

(-6x+8)(-6x-8)(2a-4b)(2a+4b)

(5-6a)(5+6a)(0.7x+0.5)(0.7x-0.5)

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

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

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

(8-3a)(8+3a)(0.2x+0.9)(0.2x-0.9)

(a+6)(a-6)(x+7)(x-7)(x2+49)

(ab+2)(ab-2)(a+5)(a-5)(a2+25)

(-6m-5n)(-6m+5n)(an+9b)(an-9b)

(x+6y)(x-6y)(4mn-n)(4mn+n)

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

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

(-9x+7)(-9x-7)(7a-5b)(7a+5b)

(3-2a)(3+2a)(0.8x+0.7)(0.8x-0.7)

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

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

(4+6x)(4-6x)4x2+(y+3x)(y-3x)

(8-2a)(8+2a)(0.3x+1)(0.3x-1)

(a+7)(a-7)(x+5)(x-5)(x2+25)

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

(-m-2n)(-m+2n)(an+8b)(an-8b)

(x+8y)(x-8y)(4mn-3n)(4mn+3n)

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

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

(-5x+8)(-5x-8)(5a-2b)(5a+2b)

(3-a)(3+a)(0.8x+0.2)(0.8x-0.2)

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

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

(7+2x)(7-2x)6x2+(y+3x)(y-3x)

(1-5a)(1+5a)(0.8x+0.1)(0.8x-0.1)

(a+7)(a-7)(x+7)(x-7)(x2+49)

(ab+5)(ab-5)(a+8)(a-8)(a2+64)

(-7m-3n)(-7m+3n)(an+b)(an-b)

(x+4y)(x-4y)(6mn-4n)(6mn+4n)

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

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

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

(4-a)(4+a)(0.4x+0.5)(0.4x-0.5)

(8m-n)(8m+n)-4n2(-2k+6)(-2k-6)

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

(5+5x)(5-5x)2x2+(y+3x)(y-3x)

(3-2a)(3+2a)(0.8x+0.1)(0.8x-0.1)

(a+2)(a-2)(x+6)(x-6)(x2+36)

(ab+3)(ab-3)(a+7)(a-7)(a2+49)

(-2m-3n)(-2m+3n)(an+4b)(an-4b)

(x+6y)(x-6y)(7mn-3n)(7mn+3n)

(y+7z)(y-7z)(-6x-3y)(-6x+3y)

(2x+1)(2x-1)(2x-7y)(2x+7y)

(-3x+5)(-3x-5)(7a-2b)(7a+2b)

(1-7a)(1+7a)(0.1x+0.3)(0.1x-0.3)

(2m-n)(2m+n)-4n2(-4k+10)(-4k-10)

(5x+8)(5x-8)(2x-8y)(2x+8y)

(8+2x)(8-2x)5x2-(y+4x)(y-4x)

(4-6a)(4+6a)(0.9x+1)(0.9x-1)

(a+5)(a-5)(x+7)(x-7)(x2+49)

(ab+9)(ab-9)(a+4)(a-4)(a2+16)

(-4m-5n)(-4m+5n)(an+7b)(an-7b)

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

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

(5x+3)(5x-3)(2x-7y)(2x+7y)

(-4x+2)(-4x-2)(3a-b)(3a+b)

(7-3a)(7+3a)(0.2x+0.2)(0.2x-0.2)

(4m-2n)(4m+2n)-4n2(-9k+1)(-9k-1)

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

(10+x)(10-x)4x2-(y+4x)(y-4x)

(10-6a)(10+6a)(0.8x+0.3)(0.8x-0.3)

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

(ab+10)(ab-10)(a+6)(a-6)(a2+36)

(-9m-4n)(-9m+4n)(an+3b)(an-3b)

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

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

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

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

(6-7a)(6+7a)(0.4x+0.8)(0.4x-0.8)

(5m-n)(5m+n)-4n2(-3k+9)(-3k-9)

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

(6+9x)(6-9x)4x2-(y+5x)(y-5x)

(6-2a)(6+2a)(0.6x+0.4)(0.6x-0.4)

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

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

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

(x+5y)(x-5y)(8mn-4n)(8mn+4n)

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

(6x+10)(6x-10)(2x-9y)(2x+9y)

(-5x+3)(-5x-3)(8a-b)(8a+b)

(8-6a)(8+6a)(0.8x+0.4)(0.8x-0.4)

(5m-2n)(5m+2n)-8n2(-k+9)(-k-9)

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

(8+9x)(8-9x)7x2+(y+5x)(y-5x)

(2-2a)(2+2a)(0.2x+0.8)(0.2x-0.8)

(a+3)(a-3)(x+4)(x-4)(x2+16)

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

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

(x+7y)(x-7y)(6mn-3n)(6mn+3n)

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

(3x+9)(3x-9)(7x-5y)(7x+5y)

(-6x+9)(-6x-9)(5a-b)(5a+b)

(9-2a)(9+2a)(0.8x+0.7)(0.8x-0.7)

(7m-4n)(7m+4n)-2n2(-8k+5)(-8k-5)

(5x+10)(5x-10)(6x-y)(6x+y)

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

(2-5a)(2+5a)(0.9x+0.6)(0.9x-0.6)

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

(ab+6)(ab-6)(a+8)(a-8)(a2+64)

(-5m-2n)(-5m+2n)(an+4b)(an-4b)

(x+6y)(x-6y)(2mn-5n)(2mn+5n)

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

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