$1+5+4-3-7+1-9-5+8-7-7+8+6-9-23-5+3$

$\frac{d}{dy}\left(\frac{1}{2}+8xy\right)$

$\left(7x+9\right)\left(7x-9\right)^2$

$\int\left(x^3-6x+10\right)\cdot\sin\left(4x+8\right)dx$

$9m^2-30rs\:+25m^2$

$\frac{a}{b\sqrt[n]{c^m}}$

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