$$\int\frac{x^3}{\left(x^2-16\right)^{\left(\frac{3}{2}\right)}}dx$$

$$-17x=5-13x^2$$

$$\int\frac{5}{2x^2+8}dx$$

$$sin\:x\:=1$$

$$\int\frac{1}{\sqrt{x}\left(1+\sqrt{x}\right)^2}\:dx$$

$$\left(5x-33y\right)\left(5x-26y\right)$$

$$\:3g-5\left(-3g+7\right)$$