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math

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simplify

(2x)^3 + 2^3 x

  • math -

    cube everything in the parenthesis and you get 8x^3

    cube the 2 and you get 8

    so you you get 8x^3 + 8x factor out 8x

    8x (x^2 +1)

  • math -

    by the way you cant factor x^2+ 1 with imaginary i's i believe

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