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