$-x^2-2x+6=0$

$\frac{1}{2}\log_{10}\left(25\right)-2\log_{10}\left(3\right)+\log_{10}\left(18\right)$

$67.71\cdot10^4$

$\int\left(\:\frac{e^{\sqrt{x}}}{\sqrt{x}}\right)dx$

$x=\frac{2}{3}\log_b\left(8\right)+\frac{1}{2}\log_b\left(9\right)-\log_b\left(6\right)$

$16m^2\left(x+y\right)^2-40m\left(y+y\right)^2+25$

$-5+0+1+19+30+4$