$$\left(-3\right)^{2}\cdot2^{4}$$

$$\lim_{x\to\infty}\left(\frac{2-\sqrt{x+2}}{\sqrt{x-1}}\right)$$

$$\int_{\frac{\pi}{2}}^{\frac{3\pi}{2}}\left(3\sec\left(x\right)\tan\left(x\right)-5\left(\csc\left(x\right)\right)^2\right)dx$$

$$\frac{13+9i}{-2-i}$$

$$12x^2+14x-2=8$$

$$4x^4+24x^2+4$$