Answer
True.
Work Step by Step
The common logarithm has base 10, $\log 10^{x}=\log_{10}10^{x}=x $, so
$ x\cdot\log 10^{x}=x\cdot x=x^{2}$
Thus, the statement is true.
You can help us out by revising, improving and updating this answer.
Update this answerAfter 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.