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

$\left(a^4b^9\right)^2$

$x\frac{dy}{dx}=10x^2$

$\frac{5}{4}-\:\frac{3}{2\:}\:\left(\frac{4}{3}\:x\:-\frac{7}{9}\right)\ge\:\frac{3}{5}\:\left(\frac{1}{2}-\frac{5}{6}x\right)\:-\frac{6}{5}$

$sinx+tanx+tanx\left(cosx+1\right)$

$\left(m+n\right)\left(m-n\right)^2$

$x^{-81}^{81}^{-x}$