Ola moises

(Ax - Bx)² + (Ay - By)² = d²

(x - 2)² + (0 - 7)² = 65

x² - 4x + 4 + 49 = 65

x² - 4x - 12 = 0

delta

d² = 16 + 48 = 64

d = 8

x1 = (4 + 8)/2 = 6

x2 = (4 - 8)/2 = -2

A1(6,0) e A2(-2,0)

pronto