X 2 16x 128 July 8, 2019 16 32 64 128 X 2 16x 128 0 Factorise x 2 16x 128 Solve 0 x 2 16x 128 by completing the square X 3 8x 2 16x 128 F x )=- 16x 2 128x X 3 8x 2 16x 128 0