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rezolvati in multimea numerelor reale ecuatia x^2-4+3=0

Răspuns :

x² = +4-3
x² = 1
x  = | 1 |
[tex] x^{2} -4+3=0 x^{2} -1=0 (x-1)(x+1)=0 =\ \textgreater \ x1=1 si x2=-1 [/tex]
X1 si x2 apartin R.