$\int\left(\frac{x^2}{\sqrt{5-4x^2}}\right)dx$

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

$\left(1+\cot\left(x\right)^2\right)\tan\left(x\right)\cos\left(x\right)$

$\left(2x-16\right)^2$

$\sqrt[3]{4}-\sqrt[3]{x^2}$

$36\cdot m^2\cdot n+72m^3\cdot n^2-108\cdot m^4\cdot n^3+144\cdot m^5\cdot n^4$

$x^{18}-\frac{1}{8}n^{12}c^{18}$