$\frac{7}{x+2}\ge\frac{1}{x+2}$
$s^2+10s+50$
$\left(\frac{-2x^{3}y^{2}}{3x^{3}y^{-2}}\right)^{3}$
$57\left(62\right)$
$4^{-3+4-4+5}$
$\int sen5\left(2x\right)\:cos2\left(2x\right)\:dx$
$\left(-9.6\right)+-4$
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