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Math Help - I need help here (remainder theorem)

  1. #1
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    I need help here (remainder theorem)

    I need help with this remainder theorem question please:

    If f(x)=3x (to the 5th power)-9x+7, use the remainder theorem to find f(3).

    Thanks,

    krashkrewsgt
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  2. #2
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    Quote Originally Posted by krashkrewsgt View Post
    I need help with this remainder theorem question please:

    If f(x)=3x (to the 5th power)-9x+7, use the remainder theorem to find f(3).
    Code:
    3].....3......0.....0......0.....-9......7
    ..............9.....27....81....243....702
    -------------------------------------------
    .......3......9.....27....81....234....709
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  3. #3
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    Use long division to to divide \displaystyle 3x^5-9x+7 by \displaystyle x-3. The remainder of the long division will be what f(3)=
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