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    find the value: -3 to the fourth power + (-11) to the second power

    +1  Views: 562 Answers: 2 Posted: 12 years ago
    Bob/PKB

    Glad to help. Hoping you understood how that all worked!

    2 Answers

    -3 x -3 x -3 x -3 + -11 x -11 
    -3 x -3 = 9
    9 x -3 = -27
    -27 x -3 = 81
    -11 x -11 = 121
    81 + 121 = 202 

    chelleanne

    I got a bit confuse. Is the problem saying?
    -(3)^4 + (-11)^2
    -81 + 121 = 40

    Or,
    (-3)^4 + (-11)^2
    81 + 121 = 202
    Bob/PKB

    Yes. The only thing in your first equation that is incorrect is the -3/4th power. Negative x negative = positive x negative = negative x negative = positive. You got it right on the second example.
    chelleanne

    My first equation was written wrong. I should have written it like this:
    -(3^4) + (-11)^2
    -81 + 121 = 40
    Bob/PKB

    I see what you were thinking.
    jrnativeofsm

    finding value of: -3^4 + (-11)^2, is the correct way it is written!
    Thank you very much Ladies,OX

    Try this homework site: http://www.khanacademy.org/



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