$49x^2-49$
$x-6>3$
$\int\left(-\frac{10x^4}{x^5+4}\right)dx$
$25x^2-5x+10y$
$8\left(2x-3\right)$
$cosx\:=\:\frac{4}{5}$
$w^2x^2-3zx^2-3zb^2+w^2b^2$
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