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|x-3|+|x^2-9|=0
P.S=^ inseamna la puterea
URGENT!!!!!!


Răspuns :

|x-3|+|x^2-9|=0 <=> |x-3|+|(x-3)(x+3)|=0 <=> |x-3|+|x-3|*|x+3|=0 <=> |x-3|(1+|x+3|)=0 <=> |x-3|=0 <=> x-3=0 <=> x=3.