### Home > A2C > Chapter 3 > Lesson 3.1.4 > Problem 3-57

3-57.

Solve each equation below for

*x*. Refer back to problem 3-30 for examples, if necessary. Homework Help ✎2

^{(}^{x}^{+3)}= 648

= 4^{x}^{6}

64 = 2^{6}

2^{(}^{x}^{ + 3)} = 2^{6}

*x* + 3 = 6

*x* = 3

Do 8 and 4 have a common base?