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2014-03-08T17:15:11+02:00
F(m)= -1 (m-4)m+3=-1 m patrat -4+3=-1 m patrat -4+3+1=0 m patrat -4+4=0 m patrat - 2 patrat=0 (m-2)(m+2)=0 m-2= 0 si m+2=0 m=2 si m= -2
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