3a^4a^5+(-3)乘以(a^3)^3

问题描述:

3a^4a^5+(-3)乘以(a^3)^3

3a^4a^5+(-3)乘以(a^3)^3
=3a^(4a*5)+(-3)(a^9)
=3a^20a-3a^9