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