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March 29, 2017

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8x^3 + 27 factor the sum or difference of two cubes. Please show work.

  • Algebra - ,

    You must know that
    A^3 + B^3 = (A+B)(A^2 - AB + b^2)

    so 8x^3 + 27)
    = (2x + 3)(4x^2 - 6x + 9)

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