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Fes les operacions indicades:

(3)·open parentheses table row 4 cell negative 1 end cell cell negative 4 end cell row cell negative 5 end cell 3 1 row cell negative 2 end cell cell negative 3 end cell cell negative 2 end cell end table close parentheses+(negative 4)·open parentheses table row cell negative 2 end cell 1 cell negative 3 end cell row cell negative 1 end cell 2 cell negative 1 end cell row cell negative 2 end cell 0 5 end table close parentheses=

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