You have the following expression given in the problem:
f(x) = x³ – 2x²<span> – x + 2
Therefore, to find the roots, you must apply the proccedure shown below:
1. You have:
0 </span><span>= x3 – 2x2 – x + 2
2. Then, when you factor, you obtain:
(x-2)(x-1)(x+1)=0
3. Therefore, you have that the roots are the following:
x1=-1
x2=1
x3=2</span>
Answer:

Step-by-step explanation:
First of all we need to know when does two events become independent:
For the two events to be independent,
that is if condition on one does not effect the probability of other event.
Here, in our case the only option that satisfies the condition for the events to be independent is
. Rest are not in accordance with the definition of independent events.
1. 29.6%
2. 18.1%
3. 27.9%
4. 75.4%