Answer:
Explanation:
x^3 - 5x2 - 8x + 48 = 0
You haven't supplied a list . To confirm which value is the correct one substitute the values for x and see if the result is 0.
Since the last term is 48 you could try some of the factors of 48 : 1, -1, 2, -2, 3 -3 and so on.