Algebra and Trigonometry 10th Edition

True. $\log_bb^{2x}=2x$
$\log_bb^{2x}=y$ $b^{\log_bb^{2x}}=b^y$ $b^{2x}=b^y~~$ (Inverse property) $y=2x~~$ (One-to-one property) That is: $\log_bb^{2x}=2x$