AB is a chord of a circle with centre O. The midpoint of the chord is X. The point C lies on the line drawn from X through the point O. Prove that AC = BC.

Answer asap! show all work! find the number of complex roots, the possible number of real roots and the possible rational roots of the polynomial function. then, solve for all roots. x^3 + 2x^2 + 3x + 6 = 0