$-\left(\frac{16}{-8}\right)+6$

$\lim_{x\to1}\left(\frac{12x-60}{x^2-6x+5}\right)$

$\frac{1}{y^2+y}\frac{dy}{dx}=-x,\:y\left(2\right)=1$

$dy\left(\frac{\left(y+1\right)}{2y}\right)^2=dx$

$\frac{3^{x+1}+3^x}{2\cdot9^x}$

$\left(12x-11y\right)^2$