5(x-y)3+10(y-x)2.(提公因式法)

问题描述:

5(x-y)3+10(y-x)2.(提公因式法)

5(x-y)3+10(y-x)2
=5(x-y)3+10(x-y)2
=5(x-y)2[(x-y)+2]
=5(x-y)2(x-y+2).
答案解析:利用提取公因式法的步骤首先提取公因数,进而提取公因式得出即可.
考试点:因式分解-提公因式法.
知识点:此题主要考查了提取公因式法分解因式,正确得出多项式的公因式是解题关键.