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    kimcel07's Avatar
    kimcel07 Posts: 1, Reputation: 1
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    #1

    Oct 22, 2007, 07:45 PM
    Algebra Homework
    Write 243 in exponential notation
    J_9's Avatar
    J_9 Posts: 40,298, Reputation: 5646
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    #2

    Oct 22, 2007, 07:46 PM
    Please read THIS ANNOUNCEMENT.
    s_cianci's Avatar
    s_cianci Posts: 5,472, Reputation: 760
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    #3

    Oct 22, 2007, 07:49 PM
    In other words, what number, when repeatedly multiplied by itself a certain number of times, yields the result 243? Keep in mind that 243 is an odd number so that's a hint. Look for some things that it's divisible by ; maybe try a factor tree.
    terryg752's Avatar
    terryg752 Posts: 197, Reputation: 4
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    #4

    Oct 22, 2007, 10:46 PM
    243 = 3 times 81 = 3 times 9 times 9

    = 3 times 3 times 3 times 3 times 3

    = 3^5
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