$-3x^2-6x+9$

$q\left(x\right)=2x^{4}+10x^{3}-14x^{2}-82x-60$

$\csc\left(56.30993247\right)$

$4x^2+49x+169=7x^2+85x+274$

$\lim_{x\to0}\left(\frac{\left(sin\left(3x\right)-3xcos\left(3x\right)\right)}{3x-sin\left(3x\right)}\right)$

$\lim_{x\to-4}\left(\frac{2x+1}{\left(x+4\right)^4}\right)$

$\lim_{x\to\infty}\left(\frac{x^3+x}{e^{4x}}\right)$