Question 1113477
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1.  Take the derivative of the given function.

    It will give you a quadratic polynomial function of W.


2.  Equate this derivative quadratic function to zero.

    It will give you a quadratic equation.

    Solve this quadratic equation and find its roots.

    These points will be extrema points to your original function.



3.   Where the quadratic function (derivative) is positive, there the original function increases.

    Where the quadratic function (derivative) is negative, there the original function decreases.
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These are STANDARD CALCULUS RECOMMENDATIONS AND GUIDLINGS.