Status: Waiting for your answers.   Using the partially completed work below, solve the equation x2 - 2x - 63 = 0 by completing the square. x2 - 2x - 63 =  0Step 1:x2 - 2x =  Step 2: x2 - 2x + = Step 3: (x - )2 = Step 4: x - = + Step 5: x = + Step 6: x1x2 = = - = -7 + = 9