9 3 10 4 5 July 8, 2019 16 32 64 128 4 9 3 10 x 2 5 5x 3 x 9 )+ 10 4 3 4 9 10 and 5 8 in descending order 5x 9 4 10 3 4 2x 9 )+ 5x =- 3 10 x