$\left(5g+3a+4\right)\cdot2$

$\left(xy-3y+x-3\right)dy=\left(xy+y-2x-2\right)dx$

$\frac{dy}{dx}\:l\left(\sqrt{x}\right)^y=\left(\sqrt{y}\right)^x$

$\lim_{x\to\infty}\left(x^2\left(\sqrt[x]{e}\:-1\right)\right)$

$\lim_{x\to\infty}\left(\frac{\sqrt{x^2+8}}{ln\left(x\right)}\right)$

$-4537+345+\left(-8\right)$

$\tan3a=-2.3$