$4x^2\:-\:2x\:-\:12\:=\:0$
$\sqrt[7]{5x^6}$
$\left(d^{12}g^7h^2\right)^8$
$100a^2+80a+16-49n^2+210n-225$
$3c^4\cdot9c^6\cdot81c^{-4}$
$6x+5\:x\:3x$
$\left(10+7y\right)^2$
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