Question

关于数学问题.因式分解,ab^2(x-y)^m+a^2b(x-y)^m+2=__________________=___

Answer 1

1.=ab(x-y)^m(b+a(x-y)^2)

2.=(x+y+2x-y)(x+y-2x+y)=3x（2y-x）

3.=(3m+3n)^-(2m-2n)^2=(3m+3n+2m-2n)(3m+3n-2m+2n)=(5m+n)(5n+m)

4.a^2b^2-m^n^2应该是a^2b^2-m^2n^2吧.如果是这样的话,=（ab+nm）(ab+mn)

5.(x+x+y-z)(x-x-y+z)=(2x+y-z)(-y+z)

6.a(1-a^2)=a(1+a)(1-a)

7.a^3-2a(b+c)+(b+c)^2应该是a^2-2a(b+c)+(b+c)^2吧.

=(a-(b+c))^2=(a-b-c)^2