Results 1 to 2 of 2

Math Help - polyniomial problem

  1. #1
    Junior Member
    Joined
    Jul 2009
    Posts
    68

    polyniomial problem

    for what value of h is the polynomial f(x) = 2x^3 - hx^2 + 5x + 9 exactly divisible by x + 2 ?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Junior Member slovakiamaths's Avatar
    Joined
    Apr 2010
    From
    India
    Posts
    41
    put x+2=0
    x=-2
    now
     2x^3-hx^2+5x+9=0
    2(-2)^3-h(-2)^2+5(-2)+9=0
    h=\frac{-17}{4}
    Follow Math Help Forum on Facebook and Google+

Search Tags


/mathhelpforum @mathhelpforum