\
The point
is in fourth quadrant.
Required points are on the
- axis and those are
units from
.
So the
coordinates are
.
Plot the circle center at
and radius of the circle is
.
The circle equation is
.
Substitute
.



Compare with quadratic equation
.
.
Roots are
.




The points on the
- axis that are
units from the point 
are
.
\
The points are
.