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13 January, 01:49

64/81 = (8/9) what is the exponent

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  1. 13 January, 05:49
    +1
    Hi

    x = exponent

    64 = 8·8 = 8^2

    81 = 9·9 = 9^2

    64/81 = 8^2/9^2 = (8/9) ^2

    (8/9) ^2 = (8/9) ^x

    x = 2

    Answer: The exponent is 2
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