$\:\left(1+\frac{\left(-1\right)^n}{n}\right)^{n^2}\cdot\:\frac{\left(2x+1\right)^n}{n}$

$( 2 b + 2 ) - 3 ( 7 b - 4 )$

$6.2+34$

$\frac{dy}{dx}=\frac{-4-x}{\left(1+x\right)^2}$

$\frac{d^{12}}{dx^{12}}\left(x\cdot\cos\left(x\right)\right)$

$1500\cdot\left(\left(cos\left(24\right)\right)+\frac{sen\left(24\right)}{tan\left(33\right)}\right)$

$y^4-14y=0$