$c^2-2c-3$
$y^2-6y+10=0$
$-190-47$
$\left(7x-4c\right)\left(7x^2+4c\right)$
$n+4+9+5n$
$3^8\cdot27$
$\frac{\left(\sec^2\left(x-1\right)\cos^2\left(x\right)\cot^2\left(x\right)\right)}{\csc^2\left(x\right)}$
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