Answer:
30
Step-by-step explanation:
5x-1=149
5x=149+1=150
5x=150
x=150/5
x=30
Answer:
-4
Step-by-step explanation:
3(2x+8) = 0
Distribute
6x + 24 = 0
24 = -6x + 0
24/-6 = -4
X = 9 sorry if x isnt what youre looking for
Answer:
6
Step-by-step explanation:
18.3/3.05=6
18.3 / 6=3.05
Write the coeeficientes of the polynomial in order:
| 1 - 5 6 - 30
|
|
|
------------------------
After some trials you probe with 5
| 1 - 5 6 - 30
|
|
5 | 5 0 30
-----------------------------
1 0 6 0 <---- residue
Given that the residue is 0, 5 is a root.
The quotient is x^2 + 6 = 0, which does not have a real root.
Therefore, 5 is the only root. You can prove it by solving the polynomial x^2 + 6 = 0.