$y^{\frac{1}{2}}\cdot\frac{dx}{dy}+y^{\frac{3}{2}}=1$

$\lim_{x\to-\infty}\left(\frac{\left(x^2-51\right)}{x-2}\right)$

$4x+yz-3+2x+4xyz-x+2zy-9$

$6\left(2p+1\right)$

$\lim_{x\to-4}\left(\frac{2x^2+7x-4}{x+4}\right)$

$2cos^2\left(x\right)=3\left(1-senx\right)$

$\frac{4m^6}{7n}\cdot\frac{m^4}{7}$