$y^2+12y+33$

$\left(25y-50x\right)dx+\left(25x-12y\right)dy$

$-p\left(l-x\right)$

$25\:+\:3\left(4^2-3^2\right)^2-62-5\left(3^2\right)$

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

$\lim_{x\to\frac{\pi}{2}}\left(\frac{\tan\left(5x\right)}{\tan\left(x\right)}\right)$

$\frac{dy}{dx}\left(10-7x^2\left(10x^3+6x^{-2}+8\right)\right)$