2x^3+6x^2分解因式
问题描述：
2x^3+6x^2分解因式
2x^3+6x^2
3pq^3+15p^3q
x^2y+xy^2-xy
-8a^2+6ab^3c
2(a-b)^2-(a-b)
7(a-b)-a(b-a)
3(x-y)^2-(x-y)^3
答
2x^3+6x^2=2x^2(x+3)
3pq^3+15p^3q=3pq(q^2+5p^2)
x^2y+xy^2-xy=xy(x+y-1)
-8a^2+6ab^3c=-2a(4a-3b^3c)
2(a-b)^2-(a-b)=(a-b)(2a-2b-1)
7(a-b)-a(b-a)=(a-b)(a+7)
3(x-y)^2-(x-y)^3=(x-y)^2(3-x+y)