Exponents

Discussion in 'Basic Math' started by nycmathguy, Aug 31, 2021.

  1. nycmathguy

    nycmathguy

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    9^20 + 9^20 + 9^20

    Let me see.

    Factor put 9^20.

    9^20(1 + 1 + 1)

    9^20 (3)

    Express 9 as 3^2.

    Express 3 as 3^1.

    (3^2)^20 (3^1)

    3^(40) (3)^1

    3^(40 + 1)

    3^(41) is my answer.

    You say?
     
    nycmathguy, Aug 31, 2021
    #1
  2. nycmathguy

    MathLover1

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    9^20 + 9^20 + 9^20=3*9^20=3*(3^2)^20=3*3^40
     
    MathLover1, Aug 31, 2021
    #2
    nycmathguy likes this.
  3. nycmathguy

    nycmathguy

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    I am wrong?
     
    nycmathguy, Sep 1, 2021
    #3
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