Related Post: 1 5 X 0 2 1 5 X 0 25 2x 1 5 X 0 2x 1 )( X 5 )( X 2 )= 0 1 5 0 6 X 2 3 2x2 X 1 5 0 By Formula Method Y 1 2 5 X 0 1 2 3 4 5 X 0 X 2 2 M 1 X 5 0 1 5 X 20 0