$$\int\frac{e^{-3z}}{3}dz$$

$$\left(-8\right)^{-4}\cdot\left(-8\right)^{-2}\cdot\left(-8\right)^5$$

$$\lim_{x\to\infty}\left(4-x^2\right)^5$$

$$\lim_{x\to\infty}\left(\frac{32x^2+2x+1}{\sqrt{16x^4+x^3}}\right)$$

$$\lim_{x\to-1}\left(8\right)$$

$$5-x>45$$

$$\frac{u^{-5}v^{-1}.u^{-8}v}{u^0v^{-20}}$$