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March 30, 2017

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Simplify (2x)^3+2^3x

  • mat 116 - ,

    (2x)^3 + (2^x)^3
    that's a sum of cubes, so
    (2x + 2^x)((2x)^2 - (2x)(2^x) + (2^x)^2)
    (2x + 2^x)(4x^2 + 2x*2^x + 2^2x)

    I'm not sure that's any simpler.

    Maybe you just wanted

    8x^3 + 2^3x

    ?

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