2x 5 8x 13 July 8, 2019 16 32 64 128 5 2x 1 )= 13 8x 8x 3 2x 5 )= 13 13 2x 5 8x 7x 4x 1 13 2x 5 8x 7 *( 4x 1 2^x + 8^x = 130
