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    lilc3434's Avatar
    lilc3434 Posts: 1, Reputation: 1
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    #1

    Dec 3, 2006, 09:13 PM
    algebra
    what's the answer to this problem 4 1/3 x 4 1/4 1/3 and 1/4 are exponents
    asterisk_man's Avatar
    asterisk_man Posts: 476, Reputation: 32
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    #2

    Dec 3, 2006, 09:20 PM
    your problem is: 4^(1/3)x4^(1/4)

    multiplying two numbers with the same base but different exponents is done by adding the exponents
    x^a*x^b=x^(a+b)

    for example:
    2^3*2^4=2^(3+4)=2^7=128

    hope this helps!
    Elisha Grey's Avatar
    Elisha Grey Posts: 31, Reputation: 0
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    #3

    Jan 18, 2007, 06:26 PM
    4^(1/3) + 4^(1/4) = 4^((1/3) +1/4)) = 4^(7/12) = (2^2)^7/12) =2^(2*(7/12)) = 2^(7/6)
    ryanisawinner's Avatar
    ryanisawinner Posts: 2, Reputation: 1
    New Member
     
    #4

    Dec 8, 2008, 12:44 PM

    How do you add or sub fractions in alegebra with diff denominators
    asterisk_man's Avatar
    asterisk_man Posts: 476, Reputation: 32
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    #5

    Dec 8, 2008, 12:51 PM
    This should be a new question. However, just like with normal numbers you need to get to a common denominator. For example,
    asterisk_man's Avatar
    asterisk_man Posts: 476, Reputation: 32
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    #6

    Dec 18, 2008, 06:45 AM

    juhi2011, if you think my answer is wrong please provide the right answer to prove that you are correct so that I may have a chance to disagree with you.
    juhi2011's Avatar
    juhi2011 Posts: 91, Reputation: 4
    Junior Member
     
    #7

    Dec 18, 2008, 09:24 PM
    Quote Originally Posted by asterisk_man View Post
    your problem is: 4^(1/3)x4^(1/4)

    multiplying two numbers with the same base but different exponents is done by adding the exponents
    x^a*x^b=x^(a+b)

    for example:
    2^3*2^4=2^(3+4)=2^7=128

    hope this helps!
    Hey don't stir your nerve.. be cool and read this..
    Up to the statement which you have written is correct ..."multiplying two numbers with the same base but different exponents is done by adding the exponents
    x^a*x^b=x^(a+b)" but after that the powers are a fraction that is 1/3 and 1/4 but you have added 3 and 4. even if you are changing the base as to the powers become 2/3 and 2/4... do you agree or disagree now??
    asterisk_man's Avatar
    asterisk_man Posts: 476, Reputation: 32
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    #8

    Dec 18, 2008, 09:36 PM

    I couldn't disagree more.
    My example did not use fractional exponents.
    Do you disagree that 2^3*2^4=128?
    Do you disagree with the identity x^a*x^b=x^(a+b)?
    I gave an example of how to multiply two numbers with the same base but different exponents. I assumed that the original poster was advanced enough to know how to add fractions.
    Unless you can point to something that is incorrect with my answer I would appreciate it if you'd admit your mistake and be more conservative with your negative ratings in the future.

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