What is the answer???

Discussion in 'Random Ramblings' started by ECBW, Oct 12, 2011.

  1. ECBW

    ECBW Chillin' With My Peeps

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    Apr 12, 2011
    NJ
    What would you say the answer to this math question is? 16 or -16?


    -2^4, or -2 to 4th power.


    Came across this when helping my kids with homework.
     
    Last edited: Oct 12, 2011
  2. ThePamperedPullet

    ThePamperedPullet Chillin' With My Peeps

    You can google search questions like that. Makes it easy for us who can't remember back that far to highschool math class. The answer is -16. Got to love google search.
     
  3. OvertheHenHouse

    OvertheHenHouse Chillin' With My Peeps

    Sep 12, 2011
    San Diego
    Just cheated and searched and it looks like it's -16 - but don't quote me cuz I cheated [​IMG]
     
  4. fuzziebutt

    fuzziebutt Chillin' With My Peeps

    Mar 9, 2009
    Winfield
    Cheating is the only way I could answer it!
     
  5. rodriguezpoultry

    rodriguezpoultry Langshan Lover

    10,907
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    Jan 4, 2009
    Claremore, OK
    -2 x -2= +4.

    +4 x -2 = -8

    -8 x -2 = + 16.

    So, positive 16.
     
  6. Southernbelle

    Southernbelle Gone Broody

    Mar 17, 2008
    Virginia
    I think 16, so I asked my DH who's an engineer and math genius and he agreed with me.

    -2 to the 4th
    -2 x -2 = 4
    4 x -2 = -8
    -8 x -2 = 16
     
  7. Southernbelle

    Southernbelle Gone Broody

    Mar 17, 2008
    Virginia
    Great minds, RP! [​IMG]
     
  8. rodriguezpoultry

    rodriguezpoultry Langshan Lover

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    Jan 4, 2009
    Claremore, OK
    WAIT. HOLD THE PHONE.

    Does order of operations matter in this one?


    If it were written this way (-2)^4, it would be +16.

    But, if it's not, then it is -16.
     
  9. rodriguezpoultry

    rodriguezpoultry Langshan Lover

    10,907
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    Jan 4, 2009
    Claremore, OK
    Quote:On both counts!!!!! [​IMG] I called in my husband who's also an engineer on this one! haha!
     
  10. fuzziebutt

    fuzziebutt Chillin' With My Peeps

    Mar 9, 2009
    Winfield
    Did anyone else read the thread about the X's getting blurry, and the humming and the voices? This does it too![​IMG]
     

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