8 7 2 )- 3 2 4 July 8, 2019 16 32 64 128 7 8 2 3 4 5 1 2x 7 2 3x 8 3 2 x 4 8 1 x 7 2 0 2 3 4 7 8 (- 2 )+ 3 (- 4 solution 2 7 8 vs 2 3 4 Squared 3×8+2+7×4 2