化简a/1根号x的立方-根号x/1
问题描述：
化简a/1根号x的立方-根号x/1
答
a/√x³-√x/1
=a/(x√x)-√x/1
=a√x/x²-√x
=√x(a/x²-1)
=(√x/x²)(a-x²)