9 2d 3 July 8, 2019 16 32 64 128 3 9 2d )+ 4d 2d 9 30 5 9 2d 32 9 4 2d 3d 4d 7d 2d 9 34 2d 3f 9 solve for f 10d 9 /( 2d 2 3 9 2d