Answer:
f(x) = 
Step-by-step explanation:
All you have to do is multiply (x + 1)(x + 2)(x - 4)
You should get 
So, f(x) = 
Equation of circle is 
Step-by-step explanation:
The standard form of the equation of circle is:

where (h,k) is the center of the circle and r is the radius of circle.
We need to find the radius of circle r by using distance formula:

r=√26
and r^2= 26
Putting values of r^2=26 and value of center (h,k)=(0,-2)
the equation of Circle is:

Keywords: Equation of circle
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