$\int\left(-8\cos^2\left(x\right)\right)dx$

$\left(-6\right)^2+-36$

$\frac{dy}{dx}=\cos\left(x\right)-\sin\left(x\right)$

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

$\left(3^5\right)^4$

$\int e^{\left(x^3+3\right)}x^2dx$

$\int\sqrt{144\left(z+8\right)^2-3}dz$