Ask Question
17 October, 16:23

Given that f (x) = 5x^3+ax^2-4x-2 and that (x-1) is a factor of f (x), find a.

+1
Answers (1)
  1. 17 October, 19:46
    0
    a=1

    Step-by-step explanation:

    Because x-1 is factor of f (x)

    for x1=1, f (1) = 0, then

    f (1) = 5*1^3+a*1^2-4*1-2=0

    5*1+a*1-4-2=0

    5+a-6=0

    a-1=0

    a=1
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Given that f (x) = 5x^3+ax^2-4x-2 and that (x-1) is a factor of f (x), find a. ...” 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