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