$\sqrt[2]{5}x\sqrt[3]{5^2}x\sqrt[5]{5^4}$

$-4<2x+\frac{1}{2}$

$2\cos^2\left(\theta\right)-\sqrt{3}\cos\left(\mathit{\theta}\right)=0$

$49a^{2}b^{8}-c^{4}$

$\frac{d^2y}{dx^2}\left(-2x^8+1\right)$

$\left(\frac{3m}{-2n^2x-2m^2n^2}\right)^2$

$\left(-.4\right)\left(x+3\right)$