7.因式分解:xy-y=___.8.2x²y³与-6x³y两个整式的公因式为____.

问题描述:

7.因式分解:xy-y=___.8.2x²y³与-6x³y两个整式的公因式为____.

7.xy-y=y(x-1)
8.2x²y³与-6x³y两个整式的公因式为2x²y