Answer
$x^{3}+0x^{2}+0x-8$
Work Step by Step
$x^{3}-8$
Insert a missing term of $0x^{2}$:
$x^{3}-8=x^{3}+0x^{2}-8=...$
Insert a missing term of $0x$:
$...=x^{3}+0x^{2}+0x-8$
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