5 x 2 9 2x − 7 3 July 8, 2019 16 32 64 128 21 3 7 2x )= 5 2 x 9 5 x 2 )- 7 x 1 )= 9 3 2x 0 9 3x 7 )- 5 x 2 )-( 2x 5 5 x 7 = 35 2 x 2 5
