### Home > AC > Chapter 13 > Lesson 13.OF2-S > Problem 7-139

7-139.

Solve for

*x*without using a calculator. Homework Help ✎

*x*= log_{25}(5)log

(1) = 0_{x}23 = log

_{10}(*x*)

25* ^{x}* = 5

Be careful: Are there any numbers for which this will not work?

See part (a).