X 4 2x 2 8x 5 0 July 8, 2019 16 32 64 128 X 5 2x 4 x 3 8x 2 16x 8 0 X 5 2x 4 4x 3 8x 2 0 (4x + 5) ^ 2 - 2x(8x + 1)