If the abscissae and ordinates of two points P and Q are roots of the equations x2+2ax−b2=0
and x2+2px−q2=0 respectively,
then write the equation of the circle with PQ as diameter.
Let α,β and r, δ are the roots of the first and second given equation,
Coordinates of P and Q are (α,γ) and (β,δ) respectively
The equation of circle on PQ as diameter is