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How to factor $x^3 + 27$

By Emma Valentine
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How to factor $x^3 + 27$

I know cube roots are involved though, I tried to factor out the cube roots but I wasnt able to figure out a way to do so

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1 Answer

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Hint:

$$x^3\pm a^3=(x\pm a)(x^2\mp ax+a^2)$$

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