初一数学下册平方差公式专项练习 38.docx
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初一数学下册平方差公式专项练习38
(3x+8)(3x-8)(4x-6y)(4x+6y)
(-9x+1)(-9x-1)(3a-3b)(3a+3b)
(2-7a)(2+7a)(0.2x+1)(0.2x-1)
(6m-4n)(6m+4n)+5n2(-k+10)(-k-10)
(2x+4)(2x-4)(x-7y)(x+7y)
(3+10x)(3-10x)2x2+(y+6x)(y-6x)
(5-8a)(5+8a)(0.5x+0.7)(0.5x-0.7)
(a+5)(a-5)(x+7)(x-7)(x2+49)
(ab+6)(ab-6)(a+8)(a-8)(a2+64)
(-7m-2n)(-7m+2n)(an+3b)(an-3b)
(x+6y)(x-6y)(7mn-3n)(7mn+3n)
(y+2z)(y-2z)(-9x-y)(-9x+y)
(9x+3)(9x-3)(5x-2y)(5x+2y)
(-5x+10)(-5x-10)(6a-3b)(6a+3b)
(8-3a)(8+3a)(0.9x+0.5)(0.9x-0.5)
(3m-n)(3m+n)-6n2(-6k+9)(-6k-9)
(6x+5)(6x-5)(7x-2y)(7x+2y)
(1+6x)(1-6x)5x2+(y+2x)(y-2x)
(4-9a)(4+9a)(0.8x+0.2)(0.8x-0.2)
(a+2)(a-2)(x+6)(x-6)(x2+36)
(ab+3)(ab-3)(a+5)(a-5)(a2+25)
(-4m-3n)(-4m+3n)(an+4b)(an-4b)
(x+7y)(x-7y)(mn-5n)(mn+5n)
(y+4z)(y-4z)(-5x-2y)(-5x+2y)
(3x+2)(3x-2)(3x-2y)(3x+2y)
(-x+5)(-x-5)(a-3b)(a+3b)
(8-10a)(8+10a)(0.3x+0.9)(0.3x-0.9)
(8m-2n)(8m+2n)+2n2(-6k+1)(-6k-1)
(9x+10)(9x-10)(3x-6y)(3x+6y)
(9+3x)(9-3x)4x2+(y+5x)(y-5x)
(6-9a)(6+9a)(0.8x+0.2)(0.8x-0.2)
(a+5)(a-5)(x+8)(x-8)(x2+64)
(ab+7)(ab-7)(a+5)(a-5)(a2+25)
(-8m-5n)(-8m+5n)(an+7b)(an-7b)
(x+6y)(x-6y)(7mn-3n)(7mn+3n)
(y+6z)(y-6z)(-2x-3y)(-2x+3y)
(7x+1)(7x-1)(8x-4y)(8x+4y)
(-9x+6)(-9x-6)(7a-4b)(7a+4b)
(8-5a)(8+5a)(0.5x+0.7)(0.5x-0.7)
(6m-5n)(6m+5n)-8n2(-7k+3)(-7k-3)
(4x+6)(4x-6)(2x-9y)(2x+9y)
(3+7x)(3-7x)9x2+(y+3x)(y-3x)
(10-4a)(10+4a)(0.8x+0.9)(0.8x-0.9)
(a+6)(a-6)(x+5)(x-5)(x2+25)
(ab+8)(ab-8)(a+5)(a-5)(a2+25)
(-7m-3n)(-7m+3n)(an+8b)(an-8b)
(x+4y)(x-4y)(4mn-3n)(4mn+3n)
(y+4z)(y-4z)(-2x-4y)(-2x+4y)
(5x+1)(5x-1)(x-y)(x+y)
(-5x+8)(-5x-8)(6a-2b)(6a+2b)
(7-a)(7+a)(0.4x+0.7)(0.4x-0.7)
(8m-2n)(8m+2n)+3n2(-3k+5)(-3k-5)
(x+3)(x-3)(x-8y)(x+8y)
(8+8x)(8-8x)9x2-(y+2x)(y-2x)
(10-6a)(10+6a)(0.5x+0.4)(0.5x-0.4)
(a+5)(a-5)(x+8)(x-8)(x2+64)
(ab+9)(ab-9)(a+6)(a-6)(a2+36)
(-4m-3n)(-4m+3n)(an+5b)(an-5b)
(x+2y)(x-2y)(9mn-3n)(9mn+3n)
(y+6z)(y-6z)(-3x-3y)(-3x+3y)
(7x+8)(7x-8)(3x-6y)(3x+6y)
(-6x+5)(-6x-5)(2a-3b)(2a+3b)
(1-10a)(1+10a)(0.3x+0.7)(0.3x-0.7)
(6m-n)(6m+n)-2n2(-7k+4)(-7k-4)
(3x+2)(3x-2)(x-7y)(x+7y)
(10+6x)(10-6x)3x2-(y+3x)(y-3x)
(2-2a)(2+2a)(0.4x+0.5)(0.4x-0.5)
(a+4)(a-4)(x+7)(x-7)(x2+49)
(ab+7)(ab-7)(a+9)(a-9)(a2+81)
(-4m-4n)(-4m+4n)(an+6b)(an-6b)
(x+3y)(x-3y)(8mn-3n)(8mn+3n)
(y+5z)(y-5z)(-2x-2y)(-2x+2y)
(8x+10)(8x-10)(3x-4y)(3x+4y)
(-3x+9)(-3x-9)(9a-5b)(9a+5b)
(2-8a)(2+8a)(0.5x+0.5)(0.5x-0.5)
(5m-n)(5m+n)+3n2(-7k+8)(-7k-8)
(4x+8)(4x-8)(2x-y)(2x+y)
(4+3x)(4-3x)2x2+(y+6x)(y-6x)
(10-10a)(10+10a)(0.8x+0.8)(0.8x-0.8)
(a+3)(a-3)(x+8)(x-8)(x2+64)
(ab+3)(ab-3)(a+1)(a-1)(a2+1)
(-5m-5n)(-5m+5n)(an+6b)(an-6b)
(x+4y)(x-4y)(7mn-3n)(7mn+3n)
(y+3z)(y-3z)(-5x-5y)(-5x+5y)
(x+8)(x-8)(5x-7y)(5x+7y)
(-6x+3)(-6x-3)(5a-5b)(5a+5b)
(4-2a)(4+2a)(0.8x+0.6)(0.8x-0.6)
(9m-4n)(9m+4n)+7n2(-k+2)(-k-2)
(3x+4)(3x-4)(4x-7y)(4x+7y)
(5+x)(5-x)3x2+(y+5x)(y-5x)
(6-3a)(6+3a)(0.5x+0.6)(0.5x-0.6)
(a+4)(a-4)(x+8)(x-8)(x2+64)
(ab+2)(ab-2)(a+7)(a-7)(a2+49)
(-6m-n)(-6m+n)(an+b)(an-b)
(x+9y)(x-9y)(mn-n)(mn+n)
(y+4z)(y-4z)(-5x-y)(-5x+y)
(4x+5)(4x-5)(3x-8y)(3x+8y)
(-8x+9)(-8x-9)(3a-3b)(3a+3b)
(3-9a)(3+9a)(0.5x+0.9)(0.5x-0.9)
(2m-4n)(2m+4n)-2n2(-9k+6)(-9k-6)
(3x+9)(3x-9)(8x-9y)(8x+9y)
(9+8x)(9-8x)3x2-(y+6x)(y-6x)
(7-4a)(7+4a)(0.3x+0.4)(0.3x-0.4)
(a+3)(a-3)(x+1)(x-1)(x2+1)
(ab+2)(ab-2)(a+2)(a-2)(a2+4)
(-3m-n)(-3m+n)(an+4b)(an-4b)
(x+4y)(x-4y)(8mn-n)(8mn+n)
(y+7z)(y-7z)(-2x-5y)(-2x+5y)
(4x+9)(4x-9)(2x-9y)(2x+9y)
(-8x+8)(-8x-8)(4a-2b)(4a+2b)
(10-8a)(10+8a)(0.3x+0.9)(0.3x-0.9)
(4m-4n)(4m+4n)+3n2(-5k+1)(-5k-1)
(x+6)(x-6)(x-7y)(x+7y)
(9+8x)(9-8x)3x2+(y+6x)(y-6x)