Related Post: X 1 2 1 0 X 1 2 1 0 Has 1 /( X 2 1 0.5 X 1 2 3x 1 )= 0 X 1 2 2x 1 0 X 1 2 1 3 0 X 1 2 5x 1 0 X 4 1 2 1 0 X 1 2 8 X 1 )= 0 1 X 2 7x 1 0