$\frac{3}{4}x-\frac{5}{4}-\frac{2}{5}x+\frac{3}{5}\ge\frac{9}{20}x-\frac{7}{20}$

$\lim_{x\to5}\left(\frac{7-x+\sqrt{x-1}}{25-x^2}\right)$

$\sin2x=2\sin^2x$

$\:x\:+\:10\:=\:40$

$\int\left(\frac{14}{\left(x^2+1\right)^{\frac{3}{2}}}\right)dx$

$e^{x^3+3ax}$

$\left(3n^2-10n+3\right)\left(n^2-2n-8\right)$