$-4\left(1\right)^4+14\left(1\right)^2+9$

$\frac{dy}{dx}=2\sin\left(x\right)-e^{-x}$

$-\left(-8\right)+12+\left(-5\right)$

$3^9\:x\:3^5$

$\:3\left(x\:+\:2y\right)\:+\:9x$

$m^{20}-1$

$\left(\frac{3}{4}x^3+\frac{1}{2}x^5-\frac{2}{5}x^2+11\right)-\left(\frac{1}{2}x^5-8x^3+12x^4-32\right)$