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2014-10-27T22:11:17+02:00
5^11-5^10(6-2)=5^11-4.5^10=5^10(5-4)=5^10 5^2(x+3)=5^(4x+2) Doua puteri sunt egale cand exponentii sunt egali 2x+6=4x+2 2x=4 x=2