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2 August, 00:31

Which expressions are equivalent? Check all that apply.

3^9 3^4 - 9^2 9^9 81^1

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Answers (2)
  1. 2 August, 01:07
    0
    3^4

    -9^2

    81^1

    Step-by-step explanation:

    3^4 is 3 x 3 x 3 x 3 = 9 x 9 = 81

    -9^2 = - 9 x - 9 = 81 (if a negative value is squared by an even number, then it will be positive)

    81^1 = 81
  2. 2 August, 02:05
    0
    3^4 and 81^1
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