L\u00f4 c\u00e2m \u0111\u1ea7u ch\u01a1i con g\u00ec?<\/h2>\n
N\u1ebfu anh ch\u1ecb em l\u00e0 ki\u1ec3u ng\u01b0\u1eddi kh\u00f4ng th\u00edch t\u00ednh to\u00e1n th\u00ec c\u00f3 th\u1ec3 v\u1eadn d\u1ee5ng c\u00e1ch kh\u00e1m ph\u00e1 l\u00f4 xu\u1ea5t hi\u1ec7n theo \u0111\u1ea7u c\u00e2m ch\u00ednh x\u00e1c, c\u1ee5 th\u1ec3 trong c\u00e1c tr\u01b0\u1eddng h\u1ee3p d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n