$\int\sqrt{5}\left(3-5x\right)dx$

$\frac{d}{dx}\frac{\csc\left(x\right)\tan\left(x\right)}{\cos\left(x\right)}$

$x^6+14y\frac{dy}{dx}=0$

$4\left(-1\right)^4-8\left(-1\right)^3+14\left(-1\right)^2+8\left(-1\right)-15\:\:\:\:\:\:\:$

$-\left(-4\right)+\left(5\right)$

$-43-\left(-15\right)$