Question 763822
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We will use the identity: {{{(a^3 + b^3) = (a + b)*(a^2 - a*b + b^2)}}}

{{{(x^3 + 125) = (x^3 + 5^3) = (x + 5)*(x^2 - 5*x + 5^2)}}}

Factored solution is:

{{{(x^3 + 125) = (x + 5)*(x^2 - 5*x + 25)}}}

:)
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