(25x²y的3次方z-10x的3次方y²)÷5x²y.y

问题描述:

(25x²y的3次方z-10x的3次方y²)÷5x²y.y

(25x²y的3次方z-10x的3次方y²)÷5x²y.y
=5x²y²(5yz-2x)÷5x²y.y
=5yz-2x