$\left(-b-1\right)^2$
$\:\left(2x-5y^2\right)^3$
$74+-1$
$y\left[n+2\right]-4y\left[n+1\right]+3y\left[n\right]$
$6\:\cdot\:-9\:+\:5\:-18$
$\tan\left(2x\right)=-1.125$
$\sqrt{3}\csc\left(x\right)+2=4$
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