$2x^2+40x+150$
$\tan^2\left(x\right)+sec^2x=2sec^2-1$
$\left(1+a^2\right)^5$
$3x+6+9y+4x$
$\left(3m\right)^2\left(3m\right)^3$
$9x^2-12x-12$
$\left(m+n-t\right)^2$
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