$\frac{m^{12}-n^{12}}{m+n}$

$\int\left(7x^3\left(1+4x^4\right)^2\right)dx$

$\int\left(ln\left(x^{12}\right)\right)^2dx$

$\left(\frac{10}{3}a^{5}xy^{2}-\frac{1}{2}ax^{3}y^{4}\right)\left(\frac{10a^{1}xy^{2}+\frac{1}{3}ax^{2}y^{4}}\right)$

$\int\frac{2x^2-4x-2}{x\left(x^2+1\right)}dx$

$\sqrt[3]{\left(x+1\right)\left(x-1\right)\left(x^2-x+1\right)\left(x^2+x+1\right)+1}$

$x^4-10x^4\:+25$