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

$8x^2+26x+15$

$\left(-x+12y\right)\left(-x-2y\right)$

$\int\left(\frac{\left(7x^2\right)}{\left(225+x^2\right)^2}\right)dx$

$\int_{\frac{-29}{2}}^{\frac{3}{2}}\left(\sqrt[5]{3-2u}\right)du$

$\frac{1}{1-sena}+\frac{1}{1+sena}=2sec^2a$

$\frac{dy}{dx}=\frac{1+3y^2}{y\:cosx}$