$\left(\sqrt{a}-z\right)^2$
$\lim_{x\to4.9}\left(x+9\right)$
$5^3+d^3$
$\left(-8\:x-3\right)-\:-5$
$1000-b\:^3\:+\:10-b$
$-18\cdot13$
$\left(a-b\right)\left(a-c\right)$
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