分解因式:x³-x²y+xy²-y³
问题描述:
分解因式:x³-x²y+xy²-y³
答
分解因式:x³-x²y+xy²-y³
x³-x²y+xy²-y³
=(x³-x²y)+(xy²-y³),
=x²(x-y)+y²(x-y),
=(x²+y²)(x-y).