(4a²b-3ab)+(-5a²b+2ab) 列出具体拖式

问题描述:

(4a²b-3ab)+(-5a²b+2ab) 列出具体拖式

(4a²b-3ab)+(-5a²b+2ab)
=4a²b-3ab-5a²b+2ab
=4a²b-5a²b+2ab-3ab
=-a²b-ab
=-ab(a+1)

(4a²b-3ab)+(-5a²b+2ab)
=-a²b-ab
=-ab(a+1)