Try photo math it is very helpful
Supposing you want this equation to be solved for a: we start with
Subtract 21 from both sides:
Multiply both sides by 5:
Change sign to both sides:
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
Answer:
-4
Step-by-step explanation:
Gained 9 yards, then lost 22:
9-22=c
-13=c
I could be wrong tho so don’t quote me on that