Related Post: 1 4x X 2 0 4 X 1 X 2 0 4x 1 2 X 0 3 4 X 1 2 X 3 0 1 2 X 4 X 0.5 2 3x 1 4 X X 1 2 )= 0 X 4 X 2 1 0 Solution 4 X 1 3.2 X 1 2 0 X 4 X 2 1 0 Factorise X 2 4x 1 0 Quadratic Formula