$2\left(3\left(x-2\right)+5\left(x-3\right)\right)+x=-8$
$5x+x^2-x^2+6x$
$415.265-266.865$
$a+a^2+a$
$\left(ab^2+cd^2\right)^3$
$2x^2+3x=0$
$2x+\left(-2x+3\right)$
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