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28 March, 19:54

4017

Simplify: 81^5-4

+2
Answers (2)
  1. 28 March, 20:37
    0
    "243"

    Answer:

    81^ (5/4)

    Rewrite

    (3^4) 5/4

    (34) 54

    Apply the power rule and multiply exponents,

    (am) n=amn

    34 (54)

    Cancel the common factor of

    311⋅51

    Simplify.

    35

    Raise

    3 to the power of 5

    "243"
  2. 28 March, 22:33
    0
    the answer is B 243 on E2020
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