$3m^2-3m+18=0$

$\lim_{x\to0}\left(\frac{tan\cdot x-x}{x^3}\right)$

$\int_{\pi}^{cos^2\left(x\right)}\frac{cos\sqrt{t}}{\sqrt{t}}dx$

$\frac{cos\left(11x\right)-cos\left(5x\right)}{sin\left(11x\right)+sin\left(5x\right)}$

$2x^2-7x+2=0$

$\left(x+4\right)\left(x-444\right)$

$\left(-12\right)-\left(-11\right)$