$\frac{\left(x+1\right)^2}{\left(x-1\right)^2}$

$\sqrt[5]{2x^2y}\cdot\:\sqrt[5]{16x^3y^4}$

$\sqrt[5]{32x^5y^{10}c^{15}}$

$a^6-16a^3+64$

$68-\left(-93\right)-72+\left(-3+124\right)$

$\left(2+a\right)^3\left(2+a\right)^{\frac{1}{4}}\left(2+a\right)^{\frac{3}{2}}$

$3n-6n+2n$