(1/2x³)²+3/4x²x的次方-(1/3²)³ 急!

问题描述:

(1/2x³)²+3/4x²x的次方-(1/3²)³ 急!

(1/2x³)²+3/4x²x的次方-(1/3²)³
=1/4x^6+3/4x^3-1/729