$4-2a-3+4a+5-7-3a$
$12\left(x\right)=7x+5-3x^2$
$50\:-\:675\:$
$\lim_{x\to2}\left(x^2-2\right)$
$\int\left(x^{-36}\right)dx$
$z^2-10z=-5$
$x^2+\frac{1}{2}+\frac{1}{16}$
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