4 5 x 2 30 July 8, 2019 16 32 64 128 30 5 4 x 2 14 2 3 x 4 5 x 300 4 x 2 )+ 5 x 1 )=- 30 5 left x 4 right 2 = 30 1 4 x 3 )/ 2 5 =- 30 2 x 2 5 4 5×2 3 4 x 5 / 2 30 x 4 5