$x^2+5x-24$
$\int_{\frac{\pi}{4}}^{\frac{\pi}{2}}\left(\frac{1}{\left(sen^2x\right)}\right)dx$
$\left(-\frac{1}{x}\right)\left(-\frac{1}{4x^3}\right)$
$x^2y^8-36z^{10}$
$x^2+8x+20$
$4x^2-\left(y+2\right)^2$
$-25+21+\left(4\right)+25$
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