初一数学下册平方差公式专项练习 9.docx
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初一数学下册平方差公式专项练习 9.docx
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初一数学下册平方差公式专项练习9
(5-3a)(5+3a)(0.9x+0.5)(0.9x-0.5)
(a+2)(a-2)(x+8)(x-8)(x2+64)
(ab+1)(ab-1)(a+4)(a-4)(a2+16)
(-4m-n)(-4m+n)(an+2b)(an-2b)
(x+3y)(x-3y)(mn-n)(mn+n)
(y+5z)(y-5z)(-x-2y)(-x+2y)
(5x+10)(5x-10)(2x-7y)(2x+7y)
(-2x+7)(-2x-7)(3a-5b)(3a+5b)
(9-3a)(9+3a)(0.5x+0.3)(0.5x-0.3)
(7m-n)(7m+n)-4n2(-2k+9)(-2k-9)
(3x+1)(3x-1)(4x-9y)(4x+9y)
(3+5x)(3-5x)2x2+(y+5x)(y-5x)
(9-9a)(9+9a)(0.1x+0.4)(0.1x-0.4)
(a+10)(a-10)(x+1)(x-1)(x2+1)
(ab+6)(ab-6)(a+3)(a-3)(a2+9)
(-7m-2n)(-7m+2n)(an+4b)(an-4b)
(x+6y)(x-6y)(7mn-n)(7mn+n)
(y+7z)(y-7z)(-7x-4y)(-7x+4y)
(6x+6)(6x-6)(6x-3y)(6x+3y)
(-3x+3)(-3x-3)(3a-3b)(3a+3b)
(7-8a)(7+8a)(0.2x+0.9)(0.2x-0.9)
(2m-n)(2m+n)+9n2(-3k+3)(-3k-3)
(7x+6)(7x-6)(8x-6y)(8x+6y)
(1+8x)(1-8x)2x2+(y+5x)(y-5x)
(10-10a)(10+10a)(0.7x+0.7)(0.7x-0.7)
(a+2)(a-2)(x+8)(x-8)(x2+64)
(ab+4)(ab-4)(a+9)(a-9)(a2+81)
(-2m-3n)(-2m+3n)(an+b)(an-b)
(x+6y)(x-6y)(2mn-3n)(2mn+3n)
(y+3z)(y-3z)(-x-4y)(-x+4y)
(3x+9)(3x-9)(5x-6y)(5x+6y)
(-2x+6)(-2x-6)(2a-5b)(2a+5b)
(3-2a)(3+2a)(0.2x+0.1)(0.2x-0.1)
(m-4n)(m+4n)-5n2(-5k+8)(-5k-8)
(6x+9)(6x-9)(4x-7y)(4x+7y)
(5+4x)(5-4x)6x2-(y+3x)(y-3x)
(6-5a)(6+5a)(0.7x+0.6)(0.7x-0.6)
(a+2)(a-2)(x+2)(x-2)(x2+4)
(ab+8)(ab-8)(a+4)(a-4)(a2+16)
(-m-2n)(-m+2n)(an+3b)(an-3b)
(x+3y)(x-3y)(8mn-4n)(8mn+4n)
(y+5z)(y-5z)(-8x-y)(-8x+y)
(3x+10)(3x-10)(7x-8y)(7x+8y)
(-2x+10)(-2x-10)(a-2b)(a+2b)
(8-10a)(8+10a)(0.3x+0.6)(0.3x-0.6)
(4m-n)(4m+n)+2n2(-6k+3)(-6k-3)
(x+2)(x-2)(4x-7y)(4x+7y)
(7+7x)(7-7x)3x2+(y+3x)(y-3x)
(2-7a)(2+7a)(0.7x+0.2)(0.7x-0.2)
(a+1)(a-1)(x+2)(x-2)(x2+4)
(ab+5)(ab-5)(a+3)(a-3)(a2+9)
(-2m-2n)(-2m+2n)(an+9b)(an-9b)
(x+5y)(x-5y)(6mn-4n)(6mn+4n)
(y+9z)(y-9z)(-4x-4y)(-4x+4y)
(4x+8)(4x-8)(8x-3y)(8x+3y)
(-7x+1)(-7x-1)(6a-3b)(6a+3b)
(10-4a)(10+4a)(0.7x+1)(0.7x-1)
(4m-3n)(4m+3n)-4n2(-8k+8)(-8k-8)
(7x+4)(7x-4)(6x-2y)(6x+2y)
(7+9x)(7-9x)6x2-(y+2x)(y-2x)
(1-4a)(1+4a)(0.9x+0.2)(0.9x-0.2)
(a+4)(a-4)(x+2)(x-2)(x2+4)
(ab+7)(ab-7)(a+5)(a-5)(a2+25)
(-9m-4n)(-9m+4n)(an+5b)(an-5b)
(x+8y)(x-8y)(mn-4n)(mn+4n)
(y+4z)(y-4z)(-6x-5y)(-6x+5y)
(3x+8)(3x-8)(2x-4y)(2x+4y)
(-6x+6)(-6x-6)(9a-b)(9a+b)
(2-8a)(2+8a)(0.1x+0.4)(0.1x-0.4)
(5m-n)(5m+n)+4n2(-9k+4)(-9k-4)
(8x+7)(8x-7)(3x-y)(3x+y)
(8+3x)(8-3x)8x2+(y+4x)(y-4x)
(9-a)(9+a)(0.4x+0.1)(0.4x-0.1)
(a+6)(a-6)(x+7)(x-7)(x2+49)
(ab+9)(ab-9)(a+9)(a-9)(a2+81)
(-3m-2n)(-3m+2n)(an+4b)(an-4b)
(x+3y)(x-3y)(5mn-n)(5mn+n)
(y+9z)(y-9z)(-6x-2y)(-6x+2y)
(9x+2)(9x-2)(3x-2y)(3x+2y)
(-6x+9)(-6x-9)(6a-2b)(6a+2b)
(9-10a)(9+10a)(0.6x+0.8)(0.6x-0.8)
(6m-3n)(6m+3n)+6n2(-6k+1)(-6k-1)
(4x+3)(4x-3)(5x-4y)(5x+4y)
(1+9x)(1-9x)8x2+(y+2x)(y-2x)
(10-10a)(10+10a)(0.8x+0.1)(0.8x-0.1)
(a+6)(a-6)(x+9)(x-9)(x2+81)
(ab+9)(ab-9)(a+7)(a-7)(a2+49)
(-3m-n)(-3m+n)(an+4b)(an-4b)
(x+5y)(x-5y)(4mn-2n)(4mn+2n)
(y+4z)(y-4z)(-7x-3y)(-7x+3y)
(2x+6)(2x-6)(6x-9y)(6x+9y)
(-2x+7)(-2x-7)(3a-b)(3a+b)
(9-2a)(9+2a)(0.2x+0.2)(0.2x-0.2)
(7m-5n)(7m+5n)+7n2(-9k+6)(-9k-6)
(3x+7)(3x-7)(6x-y)(6x+y)
(9+5x)(9-5x)7x2-(y+2x)(y-2x)
(6-5a)(6+5a)(0.6x+0.2)(0.6x-0.2)
(a+1)(a-1)(x+1)(x-1)(x2+1)
(ab+3)(ab-3)(a+2)(a-2)(a2+4)
(-5m-n)(-5m+n)(an+6b)(an-6b)
(x+8y)(x-8y)(6mn-3n)(6mn+3n)
(y+6z)(y-6z)(-3x-y)(-3x+y)
(5x+6)(5x-6)(5x-6y)(5x+6y)
(-9x+3)(-9x-3)(7a-5b)(7a+5b)
(2-4a)(2+4a)(0.2x+1)(0.2x-1)
(m-4n)(m+4n)-8n2(-3k+4)(-3k-4)
(3x+3)(3x-3)(3x-y)(3x+y)
(2+3x)(2-3x)9x2-(y+2x)(y-2x)
(4-a)(4+a)(0.3x+0.1)(0.3x-0.1)
(a+8)(a-8)(x+1)(x-1)(x2+1)
(ab+9)(ab-9)(a+3)(a-3)(a2+9)
(-5m-3n)(-5m+3n)(an+4b)(an-4b)
(x+6y)(x-6y)(mn-3n)(mn+3n)
(y+4z)(y-4z)(-2x-3y)(-2x+3y)
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