8x 4 2x 2 1 0 July 8, 2019 16 32 64 128 3x 5 8x 4 2x 3 5x 2 2x 1 0 1 2x 4 6x 2 8x 0 15 X 4 6x 3 8x 2 2x 1 0 0 3 2x 4 )= 1 2 8x 8x + 1 2^x + 8^x = 130