(x的平方*y)的2n次方*(xy)的n–1次方等于多少?

问题描述:

(x的平方*y)的2n次方*(xy)的n–1次方等于多少?

原式=[x^(2*2n)]*(y^2n)*[x^(n-1)]*[y^(n-1)]
=(x^4n)*(y^2n)*[x^(n-1)*[y^(n-1)]
=[x^(4n+n-1)]*[y^(2n+n-1)]
=[x^(5n-1)][y^(3n-1)]