$\left(4+\sqrt{3}\right)\cdot\left(4-\sqrt{3}\right)$
$9\:-\:\left(\:-\:9\:+\:12\:\right)\:-\:3$
$\left(5m\:-\:10n\right)^2$
$-\frac{992}{2}$
$\sin\:\left(18^{\circ\:\:}\right)-2cos\left(10^{\circ\:}\right)sen\left(8^{\circ\:}\right)$
$\left|14+84\right|$
$9x^2+15x+22\:x\:\:x+1$
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