$3y+a+6+1+1+y$
$5\:x\:-3\:+\:-2\:x\:9$
$2\:>\:3x\:-\:4$
$5x^2+28x+36$
$27a^2\:+\:42a\:-\:5$
$\left(h+5\right)\left(h-7\right)$
$\lim_{x\to0}\left(\frac{2\cos\left(x\right)-2}{x^2}\right)^{\frac{1}{x^2}}$
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