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    function

    For the function f, defined below, what are all the values of x for which f(x) is a real number?

    f(x)=(x+1)^3/4
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    Quote Originally Posted by fabxx View Post
    For the function f, defined below, what are all the values of x for which f(x) is a real number?

    f(x)=(x+1)^3/4
    f(x)=\sqrt[4]{(x+1)^3}

    Within the set of real numbers, we cannot have an even root of a negative number. What values of x will make (x+1)^3 netative?
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