Given equation is x2+y2+2x–4y−3=0
Let A=(−2,2),B=(2,3) and C=(2,−3)
For point A(−2,2),x2+y2+2x–4y−3=4+4−4−8−3=−7<0
Hence point A lies inside the circle
For point B=(2,3),x2+y2+2x–4y−3=4+9+4−12−3=−8<0
Hence point B lies inside the circle
For point C=(2,−3),x2+y2+2x–4y−3=4+9+4+12−3=26>0
Hence point C lies outside the circle