3a^2-a(3a-5b)-b(2a-b)^2化简

问题描述:

3a^2-a(3a-5b)-b(2a-b)^2化简

3a^2-a(3a-5b)-b(2a-b)^2
=3a²-3a²+5ab-4a²b+4ab²-b³
=5ab-4a²b+4ab²-b³