$2v+4=16$

$\lim_{x,y\to0}\left(\frac{x^3+\sin^3\left(kx\right)}{x^2+\sin^2\left(kx\right)}\right)$

$\int\frac{1}{\left(4x^2-24x+27\right)}dx$

$\frac{-y}{2}=6$

$\left(2x^5+y^2\right)\left(2x^5-y^2\right)$

$2x-15=-31$

$\lim_{x\to0}\left(\frac{\log\left(x\right)}{\frac{1}{x^2}}\right)$