$\frac{\left(\frac{10}{\left(5+x\right)^2}-\frac{2}{5}\right)}{x}$

$sin\left(cos^{-1}u\right)$

$\sqrt{48a^6}b^9$

$4x>100$

$6x^5y+2xy^3-6y$

$\frac{\left(6\right)\sin\left(30\right)}{\sin\left(105\right)}$

$\left(x\:+\:8\right)\:\left(x\:-\:3\right)\:>\:x\left(x\:+\:2\right)\:+\:3\left(x\:-\:8\right)$