Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

How to simplify exponents with different bases (simple problem)?

Specifically,

3^10 X 9^8.

Could you please explain the steps involved in finding the answer?I already know the answer is 3^26. The question is, how?

I think it's relating to 3^2=9 but I'm confused about what to do after that.

4 Answers

Relevance
  • 9 years ago
    Favorite Answer

    As you say 9 = 3^2.

    So 9^8 = (3^2)^8 and the rule is (x^m)^n = x^(m*n)

    giving 9^8 = (3^2)^8 = 3^(2*8) = 3^16

    Finally,

    3^10*9^8 = 3^10*3^16 and the rule is x^n*x^m = x^(n + m)

    giving

    3^10*9^8 = 3^(10 + 16) = 3^26

  • 6 years ago

    This Site Might Help You.

    RE:

    How to simplify exponents with different bases (simple problem)?

    Specifically,

    3^10 X 9^8.

    Could you please explain the steps involved in finding the answer?I already know the answer is 3^26. The question is, how?

    I think it's relating to 3^2=9 but I'm confused about what to do after that.

    Source(s): simplify exponents bases simple problem: https://tr.im/v7sWL
  • Pranil
    Lv 7
    9 years ago

    3^10 × 9^8 -------- make base same using 9 = 3²

    = 3^10 × 3^2^8

    = 3^10 × 3^16

    = = 3^26

    -----

  • 9 years ago

    (3^10) * (9^8) = (3^10) * (3^2)^8 = (3^10) * 3^(2 * 8) = (3^10) * (3^16) = 3^(10 +16) = 3^26.

Still have questions? Get your answers by asking now.