$40x^2+20x-12$

$152+b+226+c$

$\lim_{t\to\infty}\left(\frac{1}{2t}\cdot ln\left(1+t^2\right)\right)$

$\int\left(x+1\right)\sqrt{x^2}+2x+5\:dx$

$\int4x^2\left(5x^3+8\right)^7dx$

$\int x^2\left(x^3+1\right)^{-2}\ln\left(x\right)dx$

$\frac{\cos\left(4x\right)+4\cos\left(2x\right)+3}{8}$