2 x 2 8x 16 July 8, 2019 16 32 64 128 1 2 x 2 8x 16 X 4 2 x 2 8x 16 X 2 y 2 8x 16 X 2 8x 16 0 X 2 8x 16 factored X 2 8x 16 factorise X 2 8x 16 9 X 2 8x 16 0 discriminant X 2 8x 16 5 X 2 8x 16 quadratic formula X 2 8x 16 7 X 2 8x 16 81 X 2 4 2x 2 8x 16 0 X 2 8x 16 3 X 2 8x 16 10