$x^{2}+2x-15>0$

$\lim_{x\to\infty}\left(\frac{\left(-2\right)^{1+3\cdot\left(x+1\right)}}{5^{x+1}\cdot\left(x+1\right)^3}\right)$

$24a-32a^2-400$

$\int\left(3x+5\right)^2dx$

$\frac{1}{\left(d+2\right)^2+1}$

$\int\left(8x.\sqrt{40\:-\:2x^2}\right)dx$

$3\int_0^1\left(arctan3x\right)dx$