$25b^2+60b+144$
$9\left(y+x\right)-10+5x$
$202\cdot3$
$12x-3\:>6x\:-2$
$\lim_{x\to0}\left(-\frac{1}{2}\right)^x$
$4x-2y=1$
$\left(x^2+2xy\right)dy\:+\:\left(3x^2+y^2+2xy\right)dx$
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