因式分解:2a(a-b)-a(2a+3b)

问题描述:

因式分解:2a(a-b)-a(2a+3b)

=a(4a-5b)给分哦!!!!!!!!!!!

=a[2(a-b)-(2a+3b)]
=a(2a-2b-2a-3b)
=a(-5b)
=-5ab