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

$sen^6\:t\:cos^2\:t\:$

$\left(7xz^2-4xy^2\right)^2$

$-230-290$

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

$6+\left(-2\right)-\left(-4\right)-\left(-5\right)-\left(-2\right)-\left(-3\right)+2-4$

$\int\frac{1}{x^{2}\sqrt{25+9x^{2}}}dx$