## Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

No, this is often confused with the argument of a logarithmic function needing to be positive. For example, the equation $\log_{2}(x+2)=0$ has a negative solution, $x=-1$ (because $2^{0}=1$, and $\log_{2}1=0)$ The negative solution is such that the argument of the logarithm is still positive.