WEBVTT

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Here is the problem: (2x) cubed.

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Simplify the polynomial expression in x.

3
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Read the expression.

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Write the result in standard form. Terms are ordered by descending total degree.

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So the answer is 8x cubed.

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After expanding and combining like terms the expression is 8x cubed, a polynomial of degree 3 with 1 term.

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Spot check at x equals 0.73: original 3.112136, simplified 3.112136, which checks out.