初一数学下册平方差公式专项练习 44.docx
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初一数学下册平方差公式专项练习 44.docx
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初一数学下册平方差公式专项练习44
(3x+2)(3x-2)(6x-3y)(6x+3y)
(-x+10)(-x-10)(3a-4b)(3a+4b)
(3-5a)(3+5a)(0.7x+0.1)(0.7x-0.1)
(9m-2n)(9m+2n)+5n2(-2k+8)(-2k-8)
(7x+6)(7x-6)(3x-y)(3x+y)
(5+7x)(5-7x)9x2-(y+5x)(y-5x)
(4-2a)(4+2a)(0.7x+0.3)(0.7x-0.3)
(a+2)(a-2)(x+2)(x-2)(x2+4)
(ab+10)(ab-10)(a+1)(a-1)(a2+1)
(-5m-3n)(-5m+3n)(an+b)(an-b)
(x+6y)(x-6y)(5mn-3n)(5mn+3n)
(y+5z)(y-5z)(-5x-5y)(-5x+5y)
(8x+6)(8x-6)(2x-6y)(2x+6y)
(-7x+1)(-7x-1)(a-4b)(a+4b)
(10-7a)(10+7a)(0.4x+0.7)(0.4x-0.7)
(m-n)(m+n)+7n2(-8k+9)(-8k-9)
(5x+9)(5x-9)(8x-3y)(8x+3y)
(1+5x)(1-5x)2x2+(y+6x)(y-6x)
(8-8a)(8+8a)(0.9x+0.4)(0.9x-0.4)
(a+4)(a-4)(x+1)(x-1)(x2+1)
(ab+3)(ab-3)(a+3)(a-3)(a2+9)
(-9m-4n)(-9m+4n)(an+3b)(an-3b)
(x+4y)(x-4y)(6mn-2n)(6mn+2n)
(y+2z)(y-2z)(-8x-y)(-8x+y)
(9x+6)(9x-6)(7x-2y)(7x+2y)
(-7x+3)(-7x-3)(9a-4b)(9a+4b)
(4-7a)(4+7a)(0.7x+0.6)(0.7x-0.6)
(6m-2n)(6m+2n)+2n2(-7k+7)(-7k-7)
(5x+1)(5x-1)(9x-y)(9x+y)
(9+2x)(9-2x)7x2+(y+2x)(y-2x)
(10-4a)(10+4a)(0.9x+0.6)(0.9x-0.6)
(a+9)(a-9)(x+3)(x-3)(x2+9)
(ab+4)(ab-4)(a+3)(a-3)(a2+9)
(-7m-4n)(-7m+4n)(an+4b)(an-4b)
(x+8y)(x-8y)(5mn-3n)(5mn+3n)
(y+8z)(y-8z)(-4x-3y)(-4x+3y)
(9x+3)(9x-3)(4x-8y)(4x+8y)
(-x+7)(-x-7)(a-b)(a+b)
(8-9a)(8+9a)(0.3x+0.7)(0.3x-0.7)
(6m-3n)(6m+3n)-5n2(-k+9)(-k-9)
(8x+1)(8x-1)(4x-3y)(4x+3y)
(1+2x)(1-2x)6x2-(y+3x)(y-3x)
(5-8a)(5+8a)(0.7x+0.2)(0.7x-0.2)
(a+3)(a-3)(x+7)(x-7)(x2+49)
(ab+1)(ab-1)(a+6)(a-6)(a2+36)
(-7m-5n)(-7m+5n)(an+3b)(an-3b)
(x+5y)(x-5y)(mn-2n)(mn+2n)
(y+2z)(y-2z)(-9x-2y)(-9x+2y)
(8x+6)(8x-6)(7x-y)(7x+y)
(-8x+3)(-8x-3)(4a-3b)(4a+3b)
(10-2a)(10+2a)(0.7x+0.2)(0.7x-0.2)
(5m-2n)(5m+2n)+3n2(-7k+5)(-7k-5)
(2x+6)(2x-6)(x-6y)(x+6y)
(6+x)(6-x)3x2+(y+2x)(y-2x)
(4-3a)(4+3a)(0.2x+0.4)(0.2x-0.4)
(a+5)(a-5)(x+4)(x-4)(x2+16)
(ab+1)(ab-1)(a+1)(a-1)(a2+1)
(-5m-4n)(-5m+4n)(an+3b)(an-3b)
(x+5y)(x-5y)(2mn-5n)(2mn+5n)
(y+5z)(y-5z)(-8x-5y)(-8x+5y)
(4x+1)(4x-1)(3x-5y)(3x+5y)
(-3x+6)(-3x-6)(5a-3b)(5a+3b)
(1-2a)(1+2a)(0.4x+0.7)(0.4x-0.7)
(2m-5n)(2m+5n)+2n2(-5k+5)(-5k-5)
(9x+7)(9x-7)(7x-8y)(7x+8y)
(5+x)(5-x)7x2-(y+5x)(y-5x)
(9-5a)(9+5a)(0.9x+0.6)(0.9x-0.6)
(a+8)(a-8)(x+8)(x-8)(x2+64)
(ab+2)(ab-2)(a+1)(a-1)(a2+1)
(-6m-n)(-6m+n)(an+b)(an-b)
(x+3y)(x-3y)(2mn-n)(2mn+n)
(y+7z)(y-7z)(-2x-4y)(-2x+4y)
(8x+5)(8x-5)(2x-2y)(2x+2y)
(-7x+6)(-7x-6)(5a-5b)(5a+5b)
(6-2a)(6+2a)(0.4x+1)(0.4x-1)
(5m-2n)(5m+2n)-5n2(-3k+10)(-3k-10)
(2x+5)(2x-5)(9x-9y)(9x+9y)
(2+7x)(2-7x)9x2-(y+5x)(y-5x)
(1-10a)(1+10a)(0.4x+0.5)(0.4x-0.5)
(a+8)(a-8)(x+3)(x-3)(x2+9)
(ab+10)(ab-10)(a+7)(a-7)(a2+49)
(-4m-n)(-4m+n)(an+9b)(an-9b)
(x+7y)(x-7y)(9mn-5n)(9mn+5n)
(y+9z)(y-9z)(-3x-2y)(-3x+2y)
(4x+9)(4x-9)(x-5y)(x+5y)
(-x+6)(-x-6)(3a-4b)(3a+4b)
(3-a)(3+a)(0.7x+0.8)(0.7x-0.8)
(3m-4n)(3m+4n)+6n2(-3k+7)(-3k-7)
(5x+9)(5x-9)(3x-9y)(3x+9y)
(1+7x)(1-7x)9x2+(y+3x)(y-3x)
(1-3a)(1+3a)(0.9x+1)(0.9x-1)
(a+10)(a-10)(x+7)(x-7)(x2+49)
(ab+1)(ab-1)(a+8)(a-8)(a2+64)
(-5m-3n)(-5m+3n)(an+b)(an-b)
(x+3y)(x-3y)(mn-5n)(mn+5n)
(y+2z)(y-2z)(-5x-2y)(-5x+2y)
(7x+2)(7x-2)(x-5y)(x+5y)
(-5x+5)(-5x-5)(5a-2b)(5a+2b)
(3-2a)(3+2a)(0.9x+1)(0.9x-1)
(m-4n)(m+4n)+5n2(-2k+8)(-2k-8)
(2x+8)(2x-8)(7x-9y)(7x+9y)
(8+6x)(8-6x)7x2+(y+4x)(y-4x)
(6-8a)(6+8a)(0.1x+0.5)(0.1x-0.5)
(a+1)(a-1)(x+4)(x-4)(x2+16)
(ab+6)(ab-6)(a+6)(a-6)(a2+36)
(-2m-n)(-2m+n)(an+3b)(an-3b)
(x+5y)(x-5y)(4mn-2n)(4mn+2n)
(y+5z)(y-5z)(-8x-3y)(-8x+3y)
(3x+2)(3x-2)(7x-7y)(7x+7y)
(-6x+4)(-6x-4)(2a-5b)(2a+5b)
(2-3a)(2+3a)(0.3x+0.8)(0.3x-0.8)
(9m-4n)(9m+4n)+4n2(-8k+7)(-8k-7)
(9x+4)(9x-4)(9x-y)(9x+y)
(3+7x)(3-7x)4x2-(y+3x)(y-3x)
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