$\frac{d}{dx}\left(\left(1+3x\right)^{\frac{4}{x}}\right)$

$\int x\left[ln\left(1+x^2\:\right)+e^{\left(-x\right)}\:\right]dx$

$p\left(p+5\right)^8$

$30-\left(-5\right)$

$\lim_{x\to0}\left(\frac{\sqrt{3+x}-\sqrt{3-x}}{x}\right)$

$20-2\cdot7+1-\left(-3\right)+10$

$y^2+14y+13$