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

$\left(2x\:+4\right)^2$

$\frac{dy}{dx}=y^2-6y+13$

$\sin\left(a\right)-\sin\left(a\right)\cos^2\left(a\right)=\sin\left(a\right)^3$

$\int\left(x^2+8\right)e^{-x}dx$

$\log\left(\sqrt{x^7}\right)$

$\left(3a+4\right)\left(9a^2-4a+16\right)$