Ask Question
26 February, 06:29

Let f (x) = x2+15x+56

What are the zeros of the function?

Enter your answers in the boxes

and

+2
Answers (2)
  1. 26 February, 08:20
    0
    -8, - 7

    Step-by-step explanation:

    f (x) = x^2+15x+56

    0 = x^2+15x+56

    What two numbers multiply together to make 56 and add together to 15

    7*8 = 56

    7+8=15

    0 = (x+8) (x+7)

    Then use the zero product property

    x+8 = 0 x+7 = 0

    x+8-8 = 0-8 x+7-7 = 0-7

    x=-8 x=-7
  2. 26 February, 09:13
    0
    -7, - 8

    Step-by-step explanation:

    x² + 15x + 56 = 0

    x² + 7x + 8x + 56 = 0

    x (x + 7) + 8 (x + 7) = 0

    (x + 7) (x + 8) = 0

    x = - 7, - 8
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Let f (x) = x2+15x+56 What are the zeros of the function? Enter your answers in the boxes and ...” 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