The point (5, -7) lies outside the circle
`x^2 + y^2 - 5x + 7y - 1 = 0`
`x^2 + y^2 - 8x + 7y - 2 = 0`
`x^2 + y^2 - 8x = 0`
`x^2 + y^2 - 5x + 7y = 0`
pls solve this