初一数学下册平方差公式专项练习 79.docx
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初一数学下册平方差公式专项练习 79.docx
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初一数学下册平方差公式专项练习79
(9-6a)(9+6a)(0.1x+0.3)(0.1x-0.3)
(a+10)(a-10)(x+4)(x-4)(x2+16)
(ab+8)(ab-8)(a+9)(a-9)(a2+81)
(-3m-4n)(-3m+4n)(an+4b)(an-4b)
(x+3y)(x-3y)(mn-4n)(mn+4n)
(y+3z)(y-3z)(-8x-3y)(-8x+3y)
(4x+3)(4x-3)(8x-3y)(8x+3y)
(-7x+10)(-7x-10)(2a-3b)(2a+3b)
(3-5a)(3+5a)(0.7x+1)(0.7x-1)
(7m-4n)(7m+4n)+9n2(-4k+2)(-4k-2)
(8x+9)(8x-9)(6x-2y)(6x+2y)
(1+8x)(1-8x)6x2-(y+3x)(y-3x)
(4-6a)(4+6a)(0.1x+0.7)(0.1x-0.7)
(a+8)(a-8)(x+7)(x-7)(x2+49)
(ab+2)(ab-2)(a+3)(a-3)(a2+9)
(-9m-2n)(-9m+2n)(an+3b)(an-3b)
(x+7y)(x-7y)(9mn-3n)(9mn+3n)
(y+4z)(y-4z)(-3x-5y)(-3x+5y)
(4x+8)(4x-8)(5x-9y)(5x+9y)
(-3x+10)(-3x-10)(3a-3b)(3a+3b)
(1-8a)(1+8a)(0.6x+0.1)(0.6x-0.1)
(m-3n)(m+3n)-9n2(-7k+1)(-7k-1)
(2x+1)(2x-1)(3x-9y)(3x+9y)
(5+x)(5-x)7x2-(y+2x)(y-2x)
(4-5a)(4+5a)(0.3x+0.3)(0.3x-0.3)
(a+3)(a-3)(x+5)(x-5)(x2+25)
(ab+6)(ab-6)(a+4)(a-4)(a2+16)
(-3m-n)(-3m+n)(an+4b)(an-4b)
(x+3y)(x-3y)(7mn-3n)(7mn+3n)
(y+9z)(y-9z)(-9x-y)(-9x+y)
(7x+3)(7x-3)(x-9y)(x+9y)
(-7x+2)(-7x-2)(3a-2b)(3a+2b)
(7-5a)(7+5a)(0.5x+1)(0.5x-1)
(6m-n)(6m+n)-9n2(-8k+6)(-8k-6)
(9x+10)(9x-10)(3x-3y)(3x+3y)
(2+6x)(2-6x)6x2-(y+3x)(y-3x)
(1-3a)(1+3a)(0.6x+0.9)(0.6x-0.9)
(a+9)(a-9)(x+5)(x-5)(x2+25)
(ab+4)(ab-4)(a+9)(a-9)(a2+81)
(-5m-3n)(-5m+3n)(an+6b)(an-6b)
(x+4y)(x-4y)(9mn-3n)(9mn+3n)
(y+3z)(y-3z)(-9x-2y)(-9x+2y)
(4x+1)(4x-1)(x-2y)(x+2y)
(-5x+7)(-5x-7)(a-b)(a+b)
(8-4a)(8+4a)(0.6x+0.1)(0.6x-0.1)
(7m-2n)(7m+2n)+2n2(-4k+8)(-4k-8)
(2x+1)(2x-1)(8x-2y)(8x+2y)
(8+4x)(8-4x)2x2-(y+3x)(y-3x)
(9-10a)(9+10a)(0.2x+0.7)(0.2x-0.7)
(a+3)(a-3)(x+2)(x-2)(x2+4)
(ab+8)(ab-8)(a+5)(a-5)(a2+25)
(-5m-2n)(-5m+2n)(an+8b)(an-8b)
(x+8y)(x-8y)(3mn-n)(3mn+n)
(y+4z)(y-4z)(-5x-5y)(-5x+5y)
(6x+6)(6x-6)(9x-9y)(9x+9y)
(-2x+5)(-2x-5)(4a-b)(4a+b)
(7-9a)(7+9a)(0.4x+0.3)(0.4x-0.3)
(m-2n)(m+2n)+5n2(-5k+9)(-5k-9)
(6x+3)(6x-3)(8x-7y)(8x+7y)
(9+10x)(9-10x)3x2+(y+3x)(y-3x)
(5-6a)(5+6a)(0.1x+0.6)(0.1x-0.6)
(a+6)(a-6)(x+7)(x-7)(x2+49)
(ab+1)(ab-1)(a+7)(a-7)(a2+49)
(-7m-4n)(-7m+4n)(an+3b)(an-3b)
(x+6y)(x-6y)(3mn-5n)(3mn+5n)
(y+8z)(y-8z)(-3x-2y)(-3x+2y)
(5x+1)(5x-1)(x-3y)(x+3y)
(-7x+5)(-7x-5)(a-b)(a+b)
(10-9a)(10+9a)(0.7x+0.7)(0.7x-0.7)
(3m-4n)(3m+4n)-8n2(-k+2)(-k-2)
(7x+7)(7x-7)(2x-2y)(2x+2y)
(3+2x)(3-2x)8x2+(y+4x)(y-4x)
(1-8a)(1+8a)(0.1x+0.1)(0.1x-0.1)
(a+4)(a-4)(x+1)(x-1)(x2+1)
(ab+6)(ab-6)(a+6)(a-6)(a2+36)
(-m-n)(-m+n)(an+6b)(an-6b)
(x+4y)(x-4y)(6mn-2n)(6mn+2n)
(y+8z)(y-8z)(-4x-3y)(-4x+3y)
(4x+10)(4x-10)(5x-8y)(5x+8y)
(-9x+7)(-9x-7)(9a-2b)(9a+2b)
(2-2a)(2+2a)(0.6x+0.6)(0.6x-0.6)
(3m-n)(3m+n)-8n2(-k+1)(-k-1)
(9x+7)(9x-7)(2x-6y)(2x+6y)
(4+10x)(4-10x)3x2-(y+3x)(y-3x)
(2-a)(2+a)(0.7x+0.5)(0.7x-0.5)
(a+10)(a-10)(x+5)(x-5)(x2+25)
(ab+3)(ab-3)(a+8)(a-8)(a2+64)
(-8m-4n)(-8m+4n)(an+2b)(an-2b)
(x+8y)(x-8y)(3mn-2n)(3mn+2n)
(y+4z)(y-4z)(-4x-2y)(-4x+2y)
(4x+5)(4x-5)(5x-6y)(5x+6y)
(-x+10)(-x-10)(7a-b)(7a+b)
(2-4a)(2+4a)(0.5x+0.7)(0.5x-0.7)
(7m-5n)(7m+5n)-5n2(-7k+9)(-7k-9)
(5x+8)(5x-8)(8x-2y)(8x+2y)
(6+4x)(6-4x)2x2+(y+5x)(y-5x)
(1-8a)(1+8a)(0.2x+0.9)(0.2x-0.9)
(a+7)(a-7)(x+8)(x-8)(x2+64)
(ab+1)(ab-1)(a+4)(a-4)(a2+16)
(-6m-2n)(-6m+2n)(an+7b)(an-7b)
(x+6y)(x-6y)(5mn-3n)(5mn+3n)
(y+3z)(y-3z)(-5x-2y)(-5x+2y)
(4x+8)(4x-8)(4x-7y)(4x+7y)
(-9x+5)(-9x-5)(6a-b)(6a+b)
(2-10a)(2+10a)(0.9x+0.1)(0.9x-0.1)
(m-2n)(m+2n)+6n2(-9k+3)(-9k-3)
(3x+8)(3x-8)(5x-2y)(5x+2y)
(2+10x)(2-10x)8x2+(y+2x)(y-2x)
(3-9a)(3+9a)(0.2x+0.4)(0.2x-0.4)
(a+4)(a-4)(x+5)(x-5)(x2+25)
(ab+6)(ab-6)(a+7)(a-7)(a2+49)
(-4m-n)(-4m+n)(an+6b)(an-6b)
(x+9y)(x-9y)(6mn-4n)(6mn+4n)
(y+3z)(y-3z)(-x-5y)(-x+5y)
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