$920+90+51$
$\frac{d}{dx}\left(\left(8x+4\right)\left(2x-9\right)\right)$
$\sin=-\frac{5}{6}$
$-10+5\cdot3$
$5\left(t+1\right)^2$
$3x+15>27$
$9a^3-441a$
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