$-n\:+\:9n\:+\:3-8\:-\:8n$
$128\:dm\:=\:128\:dm$
$x=10\log\left(1000\right)$
$\int\sqrt{7}dz$
$\left(\frac{1}{2}a^2+y^2\right)^2$
$-2x^2-x=6$
$153\:\cdot\left(-65\right)+153\cdot\left(-35\right)$
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