$$\left(8x^3+48x^2+96x+64\:\right)-x+2$$

$$\int\cos^3\left(2x+3\right)\sin\left(2x+3\right)dx$$

$$\int\:\frac{1}{1+4y^2}dy$$

$$x^4+y^5=2$$

$$\lim_{x\to1}\left(\frac{ln\left(x\right)}{x-1}\right)$$

$$\lim_{x\to\infty}\left(\frac{e}{2x+\ln\left(5x\right)}\right)$$

$$\left(a^2+4b^2\right)\left(a^2-4b^2\right)$$