Simplify: ²
You may assume that any variables are nonzero.

a=4/z

Step-by-step explanation:

Here I took a picture of it instead of writing it out that way its easier to understand because it can be a bit confusing on ! Click to get full view!

The general equation of a circle with center (h,k) and radius r is

(x-h)² + (y-k)² = r²

Here, the circle is centered at (3, -2) with radius 3 units.

So, the equation of given circle is

(x-3)² + (y+2)² = 3²=9

∴ (x-3)² + (y+2)² =9 is the required equation of the given circle.