4x²y³﹙2x²-3xy+5y²﹚÷﹙﹣4x²y²﹚
问题描述:
4x²y³﹙2x²-3xy+5y²﹚÷﹙﹣4x²y²﹚
答
4x²y³﹙2x²-3xy+5y²﹚÷﹙﹣4x²y²﹚
=-xy(2x²-3xy+5y²)
=-2x³y+3x²y²-5xy³
不懂的欢迎追问.