$930\:-4900$
$\sqrt{3}\csc\left(x\right)=2$
$\frac{2}{x-4}<1$
$2\sin2\left(x\right)-2\sin\left(x\right)=0$
$6a^2+11a+7a^2-9a$
$\left(mn^2-4m+3m^2\right)\left(2m^2n+8m^2-2n^2-3m\right)$
$\left(3w^6g\right)^3$
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