$\left(3c\sqrt{d}-\frac{4}{3}x^{\frac{-2}{5}}\right)\left(\frac{4}{3}x^{\frac{-2}{5}}+3c\sqrt{d}\right)$

$\left(7x^3+11^2\right)$

$\frac{13m}{5}\left(\frac{5m}{2}+\frac{2n}{3}\right)-\frac{3n}{17}\left(17+\frac{17m}{5}\right)$

$\sqrt[5]{2}\cdot\sqrt[5]{16}$

$4x^55+2x-1$

$2\left(-1\right)^3\left(3\right)-3\left(-1\right)^2\left(3\right)^2$

$3x^3+\frac{1}{4}x^2$