$3\left(0\right)^4\:-\:3\left(0\right)^3\:-\left(0\right)^2\:+\:3\left(0\right)\:-\:1\:$
$x^2+x=20$
$3n^2-3n-36$
$-e^{-e^{\infty}}$
$x^4-20x^2+64$
$x^2-3x=8$
$3a^2+8+5$
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