X mũ 2 1 9 5 3 3 July 8, 2019 16 32 64 128 X mũ 2 cộng 1 phần 9 5 3 chia 3 2 ⋅ ( x − 9 5 ) − 3 ⋅ ( x + 1 8 ) = − 4 4
