x³y-2x²y²+xy³
问题描述:
x³y-2x²y²+xy³
答
x³y-2x²y²+xy³
=xy(x²-2xy+y²)
=xy(x-y)²
x³y-2x²y²+xy³
x³y-2x²y²+xy³
=xy(x²-2xy+y²)
=xy(x-y)²