$18+35+27+50$
$10x^3-3x,\:x=2$
$v^2=-9$
$\left(313\right)\left(228\right)$
$\left(29+x\right)\left(-29+x\right)$
$\left(x^2y+d\right)^3$
$+6x^2;\:x=-1$
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