$\frac{dy}{dx}\left(x+2\right)^2\sqrt{x^2+2}$
$\left(3x^{4a-5}\right)^2$
$5x^2-9+46$
$\left(\frac{1}{2}+\frac{3}{7}\right)^2$
$\frac{\cos^{2}\alpha\left(1+\tg^{2}\right)}{\cot g\alpha}=\tg\alpha$
$2\left(5x\right)+\left(2\right)$
$\int - 4 s d x$
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