Ask Question
16 March, 00:47

Factor and find the x-intercepts f (x) = x^2 - 3x - 4

+3
Answers (1)
  1. 16 March, 04:06
    0
    see explanation

    Step-by-step explanation:

    To find the x - intercepts let f (x) = 0, that is

    x² - 3x - 4 = 0

    Consider the factors of the constant term ( - 4) which sum to give the coefficient of the x - term ( - 3)

    The factors are - 4 and + 1, since

    - 4 * 1 = - 4 and - 4 + 1 = - 3, thus

    (x - 4) (x + 1) = 0 ← in factored form

    Equate each factor to zero and solve for x

    x - 4 = 0 ⇒ x = 4

    x + 1 = 0 ⇒ x = - 1

    x - intercepts are ( - 1, 0) and (4, 0)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Factor and find the x-intercepts f (x) = x^2 - 3x - 4 ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers