Related Post: 4 2 X 0 1 4 Sin 2 X 1 0 4 Cos 2 X 1 0 X 4 X 2 1 0 Solution X 4 2x 2 15 0 X 4 X 2 1 0 Factorise 3 X 4 2 (- 2x 1 0 4 X 3 2 X 1 0 6x 4 X 2 1 0 X 4 X 2 10 0