### Home > CCA2 > Chapter Ch7 > Lesson 7.1.5 > Problem 7-80

7-80.

Solve each of the following equations. Homework Help ✎

5

= 72^{x}2

^{3}=7^{x}3

^{(2}^{x}^{+4)}= 17

Since *x* is in the exponent, start by taking the log of both sides.

*x* ≈ 2.657

Use your calculator and continue solving the equation.

*x* ≈ −0.711