-9﹙x²y³﹚³÷﹙-3x³y的4次幂﹚

-9﹙x²y³﹚³÷﹙-3x³y的4次幂﹚
-9﹙x²y³﹚³÷﹙-3x³y的4次幂﹚

-9﹙x²y³﹚³÷﹙-3x³y的4次幂﹚
-9﹙x²y³﹚³÷﹙-3x³y的4次幂﹚
=-9x的6次幂y的9次幂÷﹙-3x³y的4次幂﹚
=3x³y的5次幂

解-9﹙x²y³﹚³÷﹙-3x³y的4次幂﹚
=-9﹙x^6y^9﹚÷﹙-3x³y^4﹚
=3﹙x^6y^9﹚÷﹙x³y^4﹚
=3x^(6-3)y^(9-4)
=3x^3y^5

-9﹙x²y³﹚³÷﹙-3x³y的4次幂﹚
=-9x六次方y九次方÷﹙-3x³y的4次幂﹚
=[（-9）÷（-3）]*(x六次方÷x³）*（y九次方÷y四次方）
=3x³y5次方
望采纳