$2\log\left(x\right)+\log\left(3\right)-\log\left(4\right)=\log\left(2x+\frac{3}{4}\right)$

$\frac{\left(4x+5\right)}{6x^2+15x}$

$\left\{-\:3\:\left[\left(2\:+\:1\right)\:+\:\left(-\:6\:+\:8\right)\right]\:+\:10\right\}$

$x=75-y^2$

$\int\frac{\left(-x^2+3x+8\right)}{\left(2x+3\right)\left[\left(x+2\right)^2\right]}dx$

$10\left(x+1\right)=90$

$\frac{dy}{dx}+y=3^x$