$\left(2z^4+z^3+5z^2-4z+12\right)\cdot\left(8z^2+3z-4\right)$

$\left(-5^9g\right)\left(-35g\right)^{21}\left(-5^4g^5\right)$

$6d+3d-2d$

$\frac{1}{3}\cdot\left(-2\cdot32\right)^{-\frac{2}{3}}$

$4x-5>4$

$\frac{d}{dx}3e^{4x+1}$

$cos^2\left(x\right)-cos\left(x\right)-3=0$