$20+90+510$

$\frac{d}{dx}5^{7-x^2}$

$-5\left(3\:+\:4x\right)\:+\:5\left(8x\:+\:1\right)$

$\frac{\left(6x^3+8x^2-15x-20\right)}{16x^2-64}$

$\log10\left(x^3-8\right)-\log_{10}\left(x-2\right)$

$2\log\left(x^2+1\right)-\log\left(y+10\right)-2\log\left(z\right)$

$1+csc^2x\:cos^2x=csc^2x$