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

  1. Consider the questions below. Homework Help ✎

    1. What can you multiply 8 by to get 1?

    2. What can you multiply x by to get 1?

    3. Using the rules of exponents, find a way to solve m8 = 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 8th power.)
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    4. Now solve n6 = 300.

    5. Describe a method for solving xa = 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).