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Cel mai inteligent răspuns!
2014-10-31T20:25:04+02:00
5x{25x8-[221-(56x4-213)x11]x2}+597 =

 5x{200-[221-(224-213)x11]x2}+597=

5x[200-(221-11x11)x2]+597=

5x[200-(221-121)x2]+597=

5x(200-100x2)+597=

5x(200-200)+597=
5x0+597=
597
2 5 2
2014-10-31T20:26:23+02:00
=5x{200-[221-(224-213)x11]x2}+597
=5x[200-(221-11)x11]x2+597
=5x(200-210x11)x2+597.......restul este usor
1 3 1