3a^3*a^3+a^2*a^4-4a*a^2*a^3
问题描述：
3a^3*a^3+a^2*a^4-4a*a^2*a^3
答
解
3a³a³+2a²a^4-4a×a²×a³
=3a^6+2a^6-4a^6
=(3+2-4)a^6
=a^6