1...3a^2(x-y)-27(x-y)b^22...-4a^3 b^4+16a^2 b^5-16ab^63...a^2-(b^2+c^2-2bc)4...(x+2)(x+4)+x^2-45.9m^2-6m+2n-n^2

来源：学生作业帮助网编辑：作业帮时间：2024/12/01 15:06:22

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1...3a^2(x-y)-27(x-y)b^22...-4a^3 b^4+16a^2 b^5-16ab^63...a^2-(b^2+c^2-2bc)4...(x+2)(x+4)+x^2-45.9m^2-6m+2n-n^2
1...3a^2(x-y)-27(x-y)b^2
2...-4a^3 b^4+16a^2 b^5-16ab^6
3...a^2-(b^2+c^2-2bc)
4...(x+2)(x+4)+x^2-4
5.9m^2-6m+2n-n^2

1...3a^2(x-y)-27(x-y)b^22...-4a^3 b^4+16a^2 b^5-16ab^63...a^2-(b^2+c^2-2bc)4...(x+2)(x+4)+x^2-45.9m^2-6m+2n-n^2
1...3a^2(x-y)-27(x-y)b^2
=3(x-y)[a^2-(3b)^2]
=3(x-y)(a+3b)(a-3b)
2...-4a^3 b^4+16a^2 b^5-16ab^6
=-4ab^4(a^2-4ab+4b^2)
=-4ab^4(a-2b)^2
3...a^2-(b^2+c^2-2bc)
=a^2-(b-c)^2
=(a+b-c)(a-b+c)
4...(x+2)(x+4)+x^2-4
=(x+2)(x+4)+(x+2)(x-2)
=(x+2)(x+4+x-2)
=(x+2)(2x+2)
=2(x+1)(x+2)
5.9m^2-6m+2n-n^2
=(3m)^2-n^2-2(3m-n)
=(3m+n)(3m-n)-2(3m-n)
=(3m-n)(3m+n-2)

3(x-y)(a-3b)(a+3b),-4ab^4(a-2b)^2,(a-b+c)(a+b-c),2(x+2)(x+1)这几个都很一般就不写步骤了。
最后这个要拆添个常数项稍微麻烦点。。=9m^2-6m-3+3+2n-n^2=3(m-1)(3m+1)-(n-3)(n+1)

3(x-y)(a+3b)(a-3b)
-4ab^4(a-2b)^2
(a-b+c)(a+b-c)
2(x+1)(x+2)
3(m-n)(3m+n-3)

3a^2(x-y)-27(x-y)b^2
=3(x-y)(a^2-9b^2)
=3(x-y)(a-3b)(a+3b)
-4a^3 b^4+16a^2 b^5-16ab^6
=-4a b^4(a^2-4a b+4b^2)
=-4a b^4(a-2b)^2
a^2-(b^2+c^2-2bc)
=a^2-(b-c)^2
=(a+b-c)(a...

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3a^2(x-y)-27(x-y)b^2
=3(x-y)(a^2-9b^2)
=3(x-y)(a-3b)(a+3b)
-4a^3 b^4+16a^2 b^5-16ab^6
=-4a b^4(a^2-4a b+4b^2)
=-4a b^4(a-2b)^2
a^2-(b^2+c^2-2bc)
=a^2-(b-c)^2
=(a+b-c)(a-b+c)
(x+2)(x+4)+x^2-4
=(x+2)(x+4)+(x+2)(x-2)
=(x+2)[(x+4)+(x-2)]
=(x+2)(x+4+x-2)
=(x+2)(2x+2)
=2(x+2)(x+1)
9m^2-6m+2n-n^2
=9m^2-6m+1+2n-n^2-1
=(3m-1)^2-(n^2-2n+1)
=(3m-1)^2-(n-1)^2
=[(3m-1)-(n-1)][(3m-1)+(n-1)]
=(3m-1-n+1)(3m-1+n-1)
=(3m-n)(3m+n-2)

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因式分解：a(x-y)^2+b(y-x)^3 4(x-y)^2+8(y-x)(x+y)1.a(x-y)^2+b(y-x)^3 2.4(x-y)^2+8(y-x)(x+y) 36a^3(x-y)^2/27a(y-x) 1.计算(a^2+a+1)(a^2-a+1) 2.计算(x-y)(x+y)+(3x-2y)(2x+y)-x(6x-y) (2x+y)(2x-3y)+x(2y+y) 2a(x-y)-4b(x-y) （3a^3/X+Y)^3*(X^2-Y^2)除以（Y-X/Y+X)^2 1.-2(b-2a)^2+(b-2a)2.-3(x-y)^2-(y-x)^33.3(x+y)(y-x)-(x-y)^3 5a(x-y)^2+10a(y-x)^3 1.（x+2)^2-(x+y)^32.(x-y)^2-(x-y)^33.(x-y)^2-(y-x)^3 计算 1.[(a+b)^2-(a+b)(a-b)]÷(-b) 2.[(x+y)(2x+y)+(x+y)(x-y)]÷3x 通分 a/(y-x)^2,b/(x-y)(x+y) 因式分解a(x-y)+b(y-x)+(2x-y) 因式分解:3a(x-y)-(x-y) 3a(x-y)-(y-x) 因式分解 a^2(x-y)+(y-x)因式分解 3(x+y)-4(x-y)=11,2(x-y)+5(x+y)=27 1.x^4+3x²y²+4y^4 2.x^4+4 3.x²-2x-a²+2a 4.(x+y)²-4x-4y+41.x^4+3x²y²+4y^4 2.x^4+4 3.x²-2x-a²+2a 4.(x+y)²-4x-4y+4 5.x(x-2)-a(a-2) 6.(x+y)²-4(x+y-1) x(x-y)2-(y-x)3 因式分解：(x+y)^3(x-y)-(x+y)(x-y)^3,9x^2-16(a+b)^2