$5x^2-3x+8=0$

$\frac{\left(1+sec\left(x\right)\right)}{sin\left(x\right)+tan\left(x\right)}=csc\left(x\right)$

$3x^2+5x-3\ge0$

$\frac{d}{dx}\cos\left(x^2+2\right)$

$4x^2+4x=1$

$\frac{dy}{dx}+2y=e^{-x}\:,y\left(0\right)=0,75$

$\int_{\frac{\pi}{5}}^{\frac{4\pi}{5}}\left(\sin\left(x\right)\right)dx$