$\frac{2x^2}{2x^2-4x+3}$

$-2\left(x+1\right)+3\left(x-2\right)-\left(x-5\right)=x+2$

$\frac{d}{dx}\left(\frac{\left(\left(7x-4\right)\left(3x+5\right)^{\frac{1}{2}}\right)}{8x-6}\right)$

$\:\left(-140\right)\left(18\right)$

$v^2+4v+100$

$\left(x^2+3\right)\left(x^2+8\right)$

$\int3^{-3x}dx$