I found this question on my test:
What is the sum of all of the real root of $x^3-4x^2+x=-6$?
- A.) $-4 $
- A.) $-2$
- A.) $-0 $
- A.) $2 $
- A.) $4 $
My answer: $2 + 3 = 5$ , but that's not an option. Was the question wrong, or I didn't pay attention enough?