$5+\left[2-\left(10-8\right)+\left(3+1\right)-\left(1-4\right)\right]-1$

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

$\int\frac{2x+1}{x^4-5x^2+4}dx$

$-4x^2x\:25\:x\:y^3$

$f\left(x\right)=\ln\left(\frac{\sqrt{x}}{\left(x+1\right)^2}\right)$

$\frac{x}{x^{2+1}}$

$3-2+5+3+3-7$