27 4 x 9 2x 1 July 8, 2019 16 32 64 128 27 x 9 2x 1 3 x 4 8 27 x 1 =( 9 4 2x 1 27 x 2 =( 1 9 2x 4 27 x 9 27x = 9x − 4