### Home > A2C > Chapter 7 > Lesson 7.2.1 > Problem 7-98

7-98.

Consider the questions below. Homework Help ✎

What can you multiply 8 by to get 1?

What can you multiply

*x*by to get 1?Using the rules of exponents, find a way to solve

*m*^{8}= 40. Remember that logarithms will not be useful here, but the exponent key on your calculator*will*be. (Obtain the answer as a decimal approximation using your calculator. Check your result by raising it to the 8^{th}power.)

Now solve

*n*^{6}= 300.Describe a method for solving

*x*=^{a}*b*for*x*with a calculator.

See part (a).

Many calculators require the parentheses for this step.

Use the method you found in part (c).

Generalize the method you found in part (c).