$x=0.5$ is a zero.
Work Step by Step
The Factor Theorem says that $(x-a)$ is a factor of $f(x)$ if and only if $f(a)=0$. Hence here: $2x-1=2(x-0.5)$, thus $x=0.5$ is a zero.
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.