(x减y)的2n次方.乘以(y-x)的2n加1次方乘以(Y一X)

问题描述:

(x减y)的2n次方.乘以(y-x)的2n加1次方乘以(Y一X)

(x减y)的2n次方*(y-x)的2n加1次方乘以(Y一X)
=(x-y)的2n次方 *(x-y)的2n加1次方*(x-y)
=(x-y)的4n+2次方