Related Post: X 12x 5 0 X 12 )( X 5 )= 0 X 2 12x 5 0 X 4 12x 5 0 By Ferrari's Method X 3 12x 5 0 0.5 X 12 X 5 Solve X^2+12x-5=0 4 X Square 12 X 5 0 X 4 12x 5 0 4 X 2 12 X 5 0