$\"\"$

Center $\"\"$ , radius (r) = 5 units.

The equation of a circle with center $\"\"$ and radius r units is $\"\"$ .

Substitute $\"\"$ .

$\"\"$

Product of two same sings is positive. \ \

$\"\"$

Evaluate powers: $\"\"$ .

$\"\"$ $\"\"$

The equation of the circle is $\"\"$ .