$b^2+5b-14=0$

$\left(10x-7y+4z\right)-\left(-y+17x+8z\right)$

$\frac{d}{dx}\sqrt{2u^3-3u^4}$

$\lim_{x\to-2}\left(\frac{2-\sqrt{6x+16}}{4x^2-9e^{2x+4}-7}\right)$

$\sin^2\left(x\right)-\tan\left(x\right)\cot\left(x\right)$

$\arcsin\left(5.79\right)$

$\lim_{x\to-3}\left(x^2-x-54\right)$