$5x^2-30x+45$
$2^2-4^6$
$\int\left(2\left(t^2-2\right)\right)dx$
$x-2>4$
$\left(c+8\right)\left(8c+2\right)$
$\left(1-d^2\right)\left(7-d^2\right)$
$6t^3\:-\:14t^2\:-\:12t$
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