$\tan\left(64\right)\cdot\sec\left(26\right)\cdot\cos\left(64\right)$
$27x^2-6x-8$
$732.08+1.902$
$restar\:+2ny-8n^3y^2-2n^3y^2+3ny$
$\left(8x^2+11y^2+5\cdot\left(-\frac{1}{3}\cdot x+\frac{13}{9}\cdot y+13\right)^2\right)\cdot9$
$6x^2-2\sqrt[2]{15}x+10$
$2m+7m-6m$
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