$\frac{d}{dx}5\left(\sec\left(x\right)\right)$

$12b^2+7b$

$\left(11m^4n^2-7m^4n^3\right)^2$

$\frac{d^3}{dx^3}\sqrt[3]{6x+1}$

$\frac{3a^3y^2}{4y}\cdot\frac{8y}{9a}$

$\lim_{x\to2}\left(\left(5x+3\right)\sqrt{29-2x}\right)$

$\int\:\frac{7x^2+29x+12}{x\left(x^2+4x+3\right)}\:dx$