有分一.分解因式1.3a²-6a2.x²（x-y)+(y-x)3.（x+y)²+2（x+y)+14.a²-2ab+b²-45.-x²y+2x²y-y的三次方

有分一.分解因式1.3a²-6a2.x²（x-y)+(y-x)3.（x+y)²+2（x+y)+14.a²-2ab+b²-45.-x²y+2x²y-y的三次方
有分
一.分解因式
1.3a²-6a
2.x²（x-y)+(y-x)
3.（x+y)²+2（x+y)+1
4.a²-2ab+b²-4
5.-x²y+2x²y-y的三次方

有分一.分解因式1.3a²-6a2.x²（x-y)+(y-x)3.（x+y)²+2（x+y)+14.a²-2ab+b²-45.-x²y+2x²y-y的三次方
1 3a(a-2)
2 (x-y)(x-1)(x+1)
3 (x+y+1)²
4 (a-b+2)(a-b+2)
5 -y(x-y)²