4 10 x 2 7 July 8, 2019 16 32 64 128 10 4 x 7 2 1 x 10 2 x 7 5 4 X 2 7x 10 4 5 x 4 10 3 7 2 )) 10 5x 3 x 4 )- 2 x 7 X 4 7x 2 10 0 4 x 2 7 8x 3 2x /- 10 1 4 5 x 2 7 10 10 4 x 7 2 2x 4 7 10 x 2 3 4 x 2 7 )- 10 =- 13 (- 4 x 10 8 7 x2 76 4 x 10 2 5x 10 x 2 7 2x 4 4 x 2 )+ 10 2 6x 7