Answer:
x³ - 5x² + 9x - 5
Step-by-step explanation:
If one root is 2 + i, other has to be 2 - i.
So at least 3 roots, minimum degree is 3
(x - 2 - i)(x - 2 + i)(x - 1)
[(x - 2)² - (i)²](x - 1)
(x² - 4x + 4 + 1)(x - 1)
(x² - 4x + 5)(x - 1)
x³ - 4x² + 5x - x² + 4x - 5
x³ - 5x² + 9x - 5
Yes................................................
I think the answer is A. Cause your supposed to subtract so 7n-4n=3n, and 3-2=1 :) I hope this helps
I would use hours however it depends the length of time you intend on spending on it. Typically you’d use the larger unit if the time elapsed passes one unit of the larger unit
i would use hours unless you are going to spend a minute or so