$\frac{dy}{dx}\left(\frac{3x^4-9x^3+5}{x^2}\right)$

$\int\frac{x-sin\left(x\right)}{x^3}dx$

$4\left(6\right)^2-3\left(6\right)+1$

$\lim_{x\to\infty}\left(-\left(9x+5e^{5.5x}\right)\right)$

$\int10e^{-10\left(x-5\right)}dx$

$\lim_{t\to\infty\:}\sqrt[t]{t^2}$

$5\infty7$