X 5 2 3 2 4 7 dư 0 5 July 8, 2019 16 32 64 128 X 5 2 chia 3 2 4 7 dư 0 5 Tìm x biết x 5 2 3 2 4 7 dư 0 5 7 ⋅ ( x − 4 ) = 5 ⋅ ( x − 2 )
