$3x^2-2\:\:para\:x\:=\:5$
$3x+5x+2$
$3\sen30^{\circ}+6\cos^{2}45^{\circ}$
$9-6x\le5$
$\sqrt[3]{124.8}$
$f^2+4f+4$
$4x^3-8x^2\:\:entre\:2x$
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