{\rtf1\ansi\ansicpg1251\deff0\deflang1049{\fonttbl{\f0\fnil\fcharset204 Tahoma;}{\f1\fnil\fcharset0 Tahoma;}{\f2\fnil\fcharset238 Tahoma;}}
\viewkind4\uc1\pard\f0\fs16 INPUT:a:b:c\par
DO:d=b^2-4*a*c\par
\lang1033\f1 OUTPUT:"\u272?elta l\'e0  ":d\par
IF:a=0\par
OUTPUT:"a b\u7857?ng 0 m\u7845?t r\u7891?i:"\par
ELSE\lang1049\f0\par
IF:d>0\par
OUTPUT:"Ph\f2\u432?\u417?ng tr\f1\'ecnh c\'f3 2 nghi\u7879?m, l\'e0":(-b+Sqrt(d))/2/a:";":(-b-Sqrt(d))/2/a\par
\f0 ELSE\par
IF:d=0\par
OUTPUT:"ph\f2\u432?\u417?ng tr\f1\'ecnh c\'f3 1 nghi\u7879?m":-b/2/a\par
\f0 ELSE\par
OUTPUT:"ph\f2\u432?\u417?ng tr\f1\'ecnh v\'f4 nghi\u7879?m"\par
\f0 ENDIF\par
ENDIF\par
\lang1033\f1 ENDIF\lang1049\f0\par
}
 