X 15 =- 2 3 1 5 July 8, 2019 16 32 64 128 3 1 15 x 2 4 5 2 3 1 5 x 2 )=- 23 15 Tìm x 15 1 x 3 2 4 5 5 x 2 )- 3 x 1 )= 15 32 If x 2 3 )+ y (- 1 1 )= 15 5 3x 1 5 x 2 15 1 3 x
