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6-99.

Consider the questions below. Homework Help ✎

  1. What can you multiply by to get ?

  2. What can you multiply by to get ?

    See part (a).

  3. Graphing Calculator iconUsing the rules of exponents, find a way to solve . 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.)

    On your calculator, raise 40 to the  power.
    Many calculators require the parentheses for this step.

  4. Now solve .

    Use the method you found in part (c).

  5. Describe a method for solving for with a calculator.

    Generalize the method you found in part (c).