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algebra

posted by on .

Please I need help!
Solve and simplify:

x^2+14x-4=0

  • algebra - ,

    solution, via the quadratic formula:

    x = [-14 ± √(196+16)]/2

    simplify:

    x = (-14 ± √212)/2
    = (-14 ± 2√53)/2
    = -7 ± √53

    Real math types prefer that as the answer. It's exact, and we don' need no steenking decimal places!

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