$\int _ { 2 } ^ { 2 } d x$

$\int\left(\frac{\sqrt{5+3ln\left(x\right)}}{x}\right)dx$

$\int\frac{3t}{\sqrt[3]{t^2+3}}dt$

$\int_0^{2\pi}\left(1-2\cos\left(x\right)+\cos^2\left(x\right)\right)dx$

$\left(7x^2+3x+9\right)+\left(2x^2+5x-2\right)$

$64x^2-32x+16$

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