Ask Question
7 May, 17:13

Find the zeros of the polynomial function f (x) = x^3-2x^2-8x

+3
Answers (2)
  1. 7 May, 17:21
    0
    First factor out that x

    f (x) = x (x^2-2x-8)

    what 2 numbers multiply to get - 8 and add to get - 2?

    -4 and 2

    f (x) = (x-0) (x-4) (x+2)

    set to zero

    x-0=0

    x=0

    x-4=0

    x=4

    x+2=0

    x=-2

    the zeroes are at x=-2,0 and 4
  2. 7 May, 20:10
    0
    The roots are x=0,4,-2
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Find the zeros of the polynomial function f (x) = x^3-2x^2-8x ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers