$5x^2+31x+48$
$2\sqrt{2}\:senucosu\:-\:\:\sqrt{6}cosu\:+\:\sqrt{3}\:\:-2senu\:$
$10x-3y=36$
$\frac{y}{2}+6=10$
$\lim_{x\to2}\frac{x^3-x^2-x+2}{2x^3-5x^2+5x-6}$
$\frac{\cos\left(68^{\circ}\right)}{\sin\left(22^{\circ}\right)}$
$4\left(x+b\right)^2$
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