初一数学下册平方差公式专项练习 78.docx
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初一数学下册平方差公式专项练习78
(4x+2)(4x-2)(4x-5y)(4x+5y)
(-x+2)(-x-2)(6a-2b)(6a+2b)
(2-a)(2+a)(0.9x+0.6)(0.9x-0.6)
(m-n)(m+n)+5n2(-7k+8)(-7k-8)
(9x+3)(9x-3)(9x-9y)(9x+9y)
(3+x)(3-x)9x2-(y+5x)(y-5x)
(4-4a)(4+4a)(0.5x+0.5)(0.5x-0.5)
(a+9)(a-9)(x+2)(x-2)(x2+4)
(ab+5)(ab-5)(a+8)(a-8)(a2+64)
(-2m-3n)(-2m+3n)(an+6b)(an-6b)
(x+7y)(x-7y)(4mn-4n)(4mn+4n)
(y+5z)(y-5z)(-6x-5y)(-6x+5y)
(7x+9)(7x-9)(5x-6y)(5x+6y)
(-x+6)(-x-6)(9a-3b)(9a+3b)
(4-9a)(4+9a)(0.3x+0.1)(0.3x-0.1)
(3m-2n)(3m+2n)+3n2(-3k+10)(-3k-10)
(6x+1)(6x-1)(5x-4y)(5x+4y)
(2+5x)(2-5x)5x2+(y+3x)(y-3x)
(4-2a)(4+2a)(0.1x+0.9)(0.1x-0.9)
(a+3)(a-3)(x+1)(x-1)(x2+1)
(ab+1)(ab-1)(a+4)(a-4)(a2+16)
(-5m-5n)(-5m+5n)(an+b)(an-b)
(x+2y)(x-2y)(7mn-n)(7mn+n)
(y+9z)(y-9z)(-5x-4y)(-5x+4y)
(3x+1)(3x-1)(5x-6y)(5x+6y)
(-6x+2)(-6x-2)(6a-4b)(6a+4b)
(1-8a)(1+8a)(0.2x+0.2)(0.2x-0.2)
(4m-5n)(4m+5n)+6n2(-3k+3)(-3k-3)
(4x+5)(4x-5)(2x-7y)(2x+7y)
(4+4x)(4-4x)8x2-(y+3x)(y-3x)
(4-10a)(4+10a)(0.2x+0.5)(0.2x-0.5)
(a+6)(a-6)(x+9)(x-9)(x2+81)
(ab+2)(ab-2)(a+8)(a-8)(a2+64)
(-5m-n)(-5m+n)(an+9b)(an-9b)
(x+3y)(x-3y)(9mn-4n)(9mn+4n)
(y+7z)(y-7z)(-7x-y)(-7x+y)
(9x+3)(9x-3)(9x-8y)(9x+8y)
(-2x+4)(-2x-4)(8a-5b)(8a+5b)
(6-6a)(6+6a)(0.1x+0.8)(0.1x-0.8)
(6m-n)(6m+n)+3n2(-7k+3)(-7k-3)
(7x+8)(7x-8)(x-8y)(x+8y)
(6+9x)(6-9x)8x2-(y+3x)(y-3x)
(7-9a)(7+9a)(0.2x+0.4)(0.2x-0.4)
(a+7)(a-7)(x+3)(x-3)(x2+9)
(ab+2)(ab-2)(a+3)(a-3)(a2+9)
(-4m-5n)(-4m+5n)(an+4b)(an-4b)
(x+2y)(x-2y)(4mn-3n)(4mn+3n)
(y+4z)(y-4z)(-2x-2y)(-2x+2y)
(x+6)(x-6)(7x-5y)(7x+5y)
(-x+4)(-x-4)(4a-4b)(4a+4b)
(8-4a)(8+4a)(0.9x+1)(0.9x-1)
(8m-2n)(8m+2n)+2n2(-7k+2)(-7k-2)
(x+7)(x-7)(3x-3y)(3x+3y)
(2+2x)(2-2x)2x2+(y+4x)(y-4x)
(7-10a)(7+10a)(0.9x+1)(0.9x-1)
(a+9)(a-9)(x+4)(x-4)(x2+16)
(ab+5)(ab-5)(a+8)(a-8)(a2+64)
(-5m-5n)(-5m+5n)(an+5b)(an-5b)
(x+2y)(x-2y)(2mn-4n)(2mn+4n)
(y+6z)(y-6z)(-7x-3y)(-7x+3y)
(2x+9)(2x-9)(2x-2y)(2x+2y)
(-7x+6)(-7x-6)(a-b)(a+b)
(3-5a)(3+5a)(0.7x+0.4)(0.7x-0.4)
(2m-2n)(2m+2n)+5n2(-9k+10)(-9k-10)
(5x+6)(5x-6)(5x-y)(5x+y)
(3+4x)(3-4x)7x2+(y+5x)(y-5x)
(1-7a)(1+7a)(0.8x+0.9)(0.8x-0.9)
(a+4)(a-4)(x+8)(x-8)(x2+64)
(ab+3)(ab-3)(a+1)(a-1)(a2+1)
(-6m-3n)(-6m+3n)(an+b)(an-b)
(x+3y)(x-3y)(6mn-n)(6mn+n)
(y+9z)(y-9z)(-6x-2y)(-6x+2y)
(4x+5)(4x-5)(2x-9y)(2x+9y)
(-4x+9)(-4x-9)(7a-3b)(7a+3b)
(6-2a)(6+2a)(0.3x+0.9)(0.3x-0.9)
(5m-5n)(5m+5n)+7n2(-2k+8)(-2k-8)
(x+6)(x-6)(2x-6y)(2x+6y)
(1+4x)(1-4x)7x2-(y+5x)(y-5x)
(2-7a)(2+7a)(0.3x+0.6)(0.3x-0.6)
(a+2)(a-2)(x+7)(x-7)(x2+49)
(ab+7)(ab-7)(a+9)(a-9)(a2+81)
(-9m-5n)(-9m+5n)(an+2b)(an-2b)
(x+4y)(x-4y)(8mn-3n)(8mn+3n)
(y+2z)(y-2z)(-4x-2y)(-4x+2y)
(4x+2)(4x-2)(x-6y)(x+6y)
(-3x+1)(-3x-1)(a-3b)(a+3b)
(6-a)(6+a)(0.6x+0.7)(0.6x-0.7)
(3m-5n)(3m+5n)+8n2(-5k+1)(-5k-1)
(4x+9)(4x-9)(x-7y)(x+7y)
(6+8x)(6-8x)9x2+(y+5x)(y-5x)
(5-4a)(5+4a)(0.3x+0.7)(0.3x-0.7)
(a+9)(a-9)(x+3)(x-3)(x2+9)
(ab+8)(ab-8)(a+9)(a-9)(a2+81)
(-6m-3n)(-6m+3n)(an+b)(an-b)
(x+8y)(x-8y)(mn-2n)(mn+2n)
(y+5z)(y-5z)(-3x-2y)(-3x+2y)
(3x+5)(3x-5)(8x-3y)(8x+3y)
(-7x+6)(-7x-6)(8a-2b)(8a+2b)
(5-2a)(5+2a)(0.9x+0.8)(0.9x-0.8)
(5m-2n)(5m+2n)-6n2(-6k+1)(-6k-1)
(2x+6)(2x-6)(x-y)(x+y)
(10+4x)(10-4x)4x2-(y+3x)(y-3x)
(3-10a)(3+10a)(0.5x+0.1)(0.5x-0.1)
(a+2)(a-2)(x+2)(x-2)(x2+4)
(ab+8)(ab-8)(a+7)(a-7)(a2+49)
(-7m-4n)(-7m+4n)(an+9b)(an-9b)
(x+7y)(x-7y)(9mn-4n)(9mn+4n)
(y+5z)(y-5z)(-x-5y)(-x+5y)
(2x+3)(2x-3)(7x-8y)(7x+8y)
(-x+3)(-x-3)(7a-3b)(7a+3b)
(7-9a)(7+9a)(0.3x+1)(0.3x-1)
(7m-n)(7m+n)+9n2(-8k+6)(-8k-6)
(9x+2)(9x-2)(9x-7y)(9x+7y)
(10+8x)(10-8x)9x2-(y+2x)(y-2x)