-0.4a(2a^+3)(5-3a^2)

Question

-0.4a(2a^+3)(5-3a^2)

Comments

забыл (2a^2+3.....

Answer 1

-0,4a(10a^2-6a^4+15-9a^2)=-0.4a(-6a^4+a^2+15)=2.4a^5-0.4a^3-6a