$\frac{x^4\:-\:3x^3\:-\:10x^2\:-\:x\:+\:5}{x\:-\:5}$

$\left(\frac{dx}{dy}\right)=x^2\left(1-3y\right)$

$\frac{dy}{dx}=\frac{3}{4}-\frac{3}{100}x\left(t\right)$

$\left(\frac{5}{7}a^{2}+\frac{1}{8}n\right)^{2}$

$\frac{dy}{dx}=\frac{1}{\sqrt{y}-y}$

$\frac{\left(3+4i\right)\cdot\:\left(\frac{3}{2}\sqrt[3]{-64}-2i\right)}{\left(2\frac{2}{5}-4i\right)\cdot\:\frac{5}{2}}$

$-2+2+-1+8$