Answer:
2
Step-by-step explanation:
Given: a² +a +1= 0
Bringing a terms to the right-hand side:
1= -a² -a
-a² -a= 1
-a -a²= 1
1 -a -a²
= (-a -a²) +1
= 1 +1
= 2
Simplify by combining the real and imaginary parts of each expression
Answer: 356i/35
Answer:

Step-by-step explanation:
Given
Function; 
Required
Find an equation perpendicular to the given function if it passes through (-3,9)
First, we need to determine the slope of: 
The slope intercept of an equation is in form;

<em>Where m represent the slope</em>
Comparing
to
;
We'll have that

Going from there; we need to calculate the slope of the parallel line
The condition for parallel line is;

Substitute 

Divide both sides by -2


The point slope form of a line is;

Where
and 
becomes

Open the inner bracket

<em>Hence, the point slope form of the perpendicular line is: </em>
<em />
<em />
Answer:
yes they both are right good job