Factor the expression completely, the lowest power of each common factor
x^−3/2 + 2x^−1/2 + x^1/2
\(x^{-3/2} + 2x^{-1/2}+x^{1/2} =\\ x^{1/2}\left(x^{-2}+2x^{-1}+1\right) =\\ x^{1/2}\left(x^{-1}+1\right)^2\)
