8x 3 2x 1 )= 2x 4 July 8, 2019 16 32 64 128 8x 1 2x )-( 4x 3 )( 4x 3 )= 2x X 4 8x 3 2x 2 1 x 4 2x 2 2 1 2x 1 )=- 3 2x 1 )+ 8x 4 2^x + 8^x = 130 8x + 1