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-   -   MATH, I have 2 put this in descending powers... (https://www.askmehelpdesk.com/showthread.php?t=670544)

  • Jun 13, 2012, 04:40 PM
    qwertyuioop
    MATH, i have 2 put this in descending powers...
    I have 2 put this in descending powers...
    7x-2+3xto the 5th power - 4x to the 2nd power +x to the 4th power
    is the answer..
    7x-2 +x to the 4th power
    3xto the 5th power - 4x to the 2nd power +x to the 4th power +7x-2
    is this correct?
  • Jun 13, 2012, 04:44 PM
    qwertyuioop
    MATH, i have 2 put this in descending powers...
    I have 2 put this in descending powers...
    7x-2+3xto the 5th power - 4x to the 2nd power +x to the 4th power
    is the answer..
    7x-2 +x to the 4th power
    3xto the 5th power - 4x to the 2nd power +x to the 4th power +7x-2
    is this correct?
  • Jun 13, 2012, 05:03 PM
    ebaines
    Please do not double-post questions. Are you in middle school or high school?
  • Jun 13, 2012, 05:10 PM
    qwertyuioop
    Middel school but going in2 high school so I wasn't sure of which one I shld write! But are you gonnna help me w/ my problom?
    Thanks if you are !
  • Jun 13, 2012, 05:12 PM
    qwertyuioop
    Please help me I have a MATH FINAL!!
  • Jun 13, 2012, 05:12 PM
    ebaines
    So your answer is:



    Remember that , and a constant like -2 is equivalent to
    and would it change you answer?
  • Jun 13, 2012, 05:15 PM
    qwertyuioop
    awsome thanks but what about if I have 2 put in assending powers on...
    x to the third power -3 -5x + x to the second power?
  • Jun 14, 2012, 06:08 AM
    ebaines
    Quote:

    Originally Posted by qwertyuioop View Post
    awsome thnx but wat about if i have 2 put in assending powers on...
    x to the third power -3 -5x + x to the second power??

    Qwerty - first it's helpful to use the carat character "^" as shorthand for "to the power of." Hence you are asking about this:

    x^3-3-5x+x^2

    Same process as before: replace the -3 by -3x^0 and -5x by -5x^1, and you get:

    x^3 -3x^0-5x^1+x^2

    Can you put this in order of ascending powers of x?
  • Jun 14, 2012, 06:14 AM
    qwertyuioop
    so it would be..
    (ascending is from smallest 2 freatest right?)
    x^2+x^3-3x^0-5x^1


    but why did u put -5x^1 have a 1 why not a zero..
    and why did u put -3x^0 have 1 0 why not a 1?

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