5 x 6 3 8 x 9 July 8, 2019 16 32 64 128 3 8 x 7 12 x 5 6 x 9 32 5 6 x 9 )+ 3 4 x 1 )- 7 9 8 5 5 6 3 8 9 x 1 2 3 x 4 5 x 6 7 x 8 9 4 x 6 y 3 xy 8 x 9 y 5 xy 3 x 4 x 5 x 6 x 7 x 8 x 9 2 x − 5 9 − 3 x 6 8 3 x 7 (- 5 6 x 2 9 x 3 86 =- 9 8 5 x 5 x 5 5 x 5 x 5 x 5 x 5 5 x 7 = 35