Tìm m để x 2 2m 1 x m 2 3 0 July 8, 2019 16 32 64 128 2) (1 - t) ^ 2 - t ^ 2 3 4) m ^ 2 + 9 (1 - m) ^ 2 1) (m ^ 2 - 2m) ^ 2 - 1 2) 16 - (m ^ 2 + 4m) ^ 2 3) x ^ 2 - 18xy + 81y ^ 2 - z ^ 2 2) (m + 1)/(m ^ 2 + m + 1) - 2/(1 - m) + (3m ^ 2 + 2m + 4)/(1 - m ^ 3) ((m - 2)/(m + 2) - (m + 2)/(m - 2)) / ((8m)/(m ^ 2 - 4))