3 (- x 2 ) 4 2x 1 )=- 18 July 8, 2019 16 32 64 128 3 (- x 2 )+ 4 2x 1 )=- 18 1 + 2 + 3 + 4 = 10 1 - 2 = 4 1 2 + 3 4
