(3m²n³)/(mn)²

问题描述:

(3m²n³)/(mn)²
(15x³-10x²)/5x=

(3m²n³)/(mn)²=(3m²n³)/(m²n²)=3n��������أ�15x³-10x²��/5x=(15x³-10x²)/5x=15x³/5x-10x²/5x=3x²-2x