$2\:.\:\:\left(\:-12\:+\:36\:\right)\::\:6\:+\:\left(\:8\:-\:5\:\right)\::\:\left(\:-\:3\:\right)\:\:-\:6$
$cos\:2x=1\:+\:4\:sen\:x$
$\log_{10}\left(2\right)+\log_{10}\left(x\right)$
$2^2+3^2-1^{19}$
$4x\left(2\right)+9y\left(2\right)-12xy$
$a2+16a+60$
$\sqrt[3]{a}.\sqrt[9]{a^3}$
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