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12 April, 01:32

A number to the 8th power divided by the same number to the 5th power is 64 what is the number?

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  1. 12 April, 05:03
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    Let the number = X

    You have X^8 / X^5

    When dividing two numbers with powers, Simplify the expression by subtracting the powers.

    8-5=3

    so X^8 / X^5 becomes x^3

    Now you have x^3 = 64

    To find x take the cubic root of 64:

    X = ∛64

    X = 4

    The number is 4
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