$\left(2m^2-7\right)\left(2m^2-\:7\right)$
$y=\left(10x+2\right)^x$
$23^{12x^{2}y^{4}-3x^{14}y}$
$cos\left(a\right)-cot\:\left(a\right)cos\left(a\right)=sen\left(a\right)$
$3x^3-x^2-18x+6$
$x+y+z=48$
$-2700\cdot3000$
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