因式分解:5x³-10x²y²+5xy³
问题描述:
因式分解:5x³-10x²y²+5xy³
答
(1)此题只需先提取公因式5x,然后再运用完全平方差公式合并即可.
5x³-10x²y+5xy²
=5x(x2-2xy+y²)
=5x(x-y)²
答
应该是5x³y吧,估计是题目抄错了。
如果没抄错,那么:
5x³-10x²y²+5xy³=5x(x²-2xy²+y³)
如果是抄错了,那么:
5x³y-10x²y²+5xy³
=5xy(x²-2xy+y²)
=5xy(x-y)²
答
是5x³y-10x²y²+5xy³
=5xy(x²-2xy+y²)
=5xy(x-y)²
答
原始=5x(x²-2xy²+y³)