$12x^2-4$

$\int\sqrt{64-t^2}dt$

$\frac{1}{\cot^2\left(x\right)}+\frac{1}{\sin\left(x\right).\csc\left(x\right)}$

$\log_{\left(\sqrt{13}-\sqrt{12}\right)}\left(\sqrt{13}+\sqrt{12}\right)$

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

$5x^2-11x+24$

$\lim_{x\to-\infty}\left(-2.x^4+8x-10000\right)$