$9\left(\frac{x}{3}-1\right)^8$

$e^x.y'-\frac{1}{e^y}=0$

$213xy+34x$

$2\left(\frac{t^2}{20}-2\right)^2+2$

$\lim_{x\to\infty\:}\left(e\right)^{\lim_{x\to\infty\:}\left(\frac{\ln\left(2^x+3^x\right)}{x}\right)}$

$\lim_{x\to0}\left(\frac{\left(\sqrt{2+x}-2\right)}{x}\right)$

$[\left(-8\right)+5\cdot2-4:\left(-2\right)]\cdot\left(-7\right)$