Simplify (2+i)^3

Math
Use the Binomial Theorem.
Simplify terms.
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Simplify each term.
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Raise to the power of .
Raise to the power of .
Multiply by .
Multiply by .
Rewrite as .
Multiply by .
Factor out .
Rewrite as .
Rewrite as .
Simplify by adding terms.
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Subtract from .
Subtract from .
Simplify (2+i)^3

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