$$5\left(\sqrt{x}\right)^4\left(-2\right)$$

$$-6-\left(5+3-15\right)$$

$$\int_0^{\frac{\pi}{2}}\left(2\sin\left(x\right)\right)dx$$

$$\frac{8}{1-x^5}$$

$$\frac{\left(3\left(\frac{1}{3}\right)^3-16\left(\frac{1}{3}\right)^2+11\left(\frac{1}{3}\right)+-2\right)}{\left(3x-1\right)}$$

$$3x-4x^3+8-2x^3-5x$$

$$539.3-82.728$$