$9x^2+90x+241$
$\left(1-\cos\theta\right)\left(\csc\theta-\cot\theta\right)$
$\lim_{x\to\:-3}\frac{x^3+x^2-6x}{x^2+3x}$
$\ln\left(t^2+3t\right)$
$\frac{-6x^5-2x^3-4x-18}{x+1}$
$ln\left(x\right)^2=ln\:\left(x\right)^4$
$\lim_{x\to\infty}\left(x^2e^{-x^3}\right)$
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