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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Originally Posted by fabxx 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 $\displaystyle f(x)=\sqrt[4]{(x+1)^3}$ Within the set of real numbers, we cannot have an even root of a negative number. What values of x will make $\displaystyle (x+1)^3$ netative?
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