(9 −3 )(9 12 ) July 8, 2019 16 32 64 128 9 - 3 )( 9 12 )= 9 3 9 12 6 Dfrac 9 - 3 9 12 = 9 3 x 9 12 9 x 3 9 12 6 1 3 9 9 12 2 9 3 )- 12 9
