2 5 x 9 ) 8x July 8, 2019 16 32 64 128 2 5 x 9 )+ 8x 8x 5 2 x 3 )+ 9 8x 2 x 9 )+( 8x 2 5x 5 2 5 8x )- 13 9 1 x )- 12 9 x 8 = 2 x 2 5 9 5 x 8 2^x + 8^x = 130
