3 5 8 x 9 1 4 x 5 July 8, 2019 16 32 64 128 9 3 5 x − 3 2 )= 4 4 1 x − 8 5 Câu 5 tính 3 4 x 1 5 x 8 9 9 5 x 8 3 8(x + 1 3) = 9 5x + 1 3 = 9 5
