(4x的n+1次方y的n次方)³÷【(-xy)²】的n次方,

问题描述:

(4x的n+1次方y的n次方)³÷【(-xy)²】的n次方,

元=6x^(3n+1)y^3n÷x^2ny^2n
=64x^(n+1)y^n