$\left(4x^2+8x-1\right)-\left(4x^2+24x-3\right)$

$\lim_{x\to0}\left(\frac{\sqrt{5+x}-\sqrt{10}}{x}\right)$

$\lim_{x\to\infty}\left(\frac{\left(6n^2+3n\right)^n}{\left(5+4n^2\right)^n}\right)$

$\int cot^5xcsc^2xdx$

$7^{3\left(\frac{4}{3}\right)-1}=343$

$y'+\frac{y}{x}=ln^2x$

$60+7c-c^2$