计算:3xy(x2y-xy2+xy)-xy2(2x2-3xy+2x)因式分解_数学解答

计算:3xy(x2y-xy2+xy)-xy2(2x2-3xy+2x)因式分解

人气：425 ℃　时间：2020-02-06 05:34:59

解答

3xy(x²y-xy²+xy)-xy²(2x²-3xy+2x)
=3x³y²-3x²y³+3x²y²- 2x³y²+3x²y³-2x²y²
=x³y²+x²y²