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rezolvati in R ecuatia :
(x+2)la puterea 2 =x(3x+2)


Răspuns :

(x+2)² =x(3x+2)
x²+4x+4=3x²+2x
x²-3x²+4x-2x=4
-2x²+2x=4
-2x²=4:2
-2x²=2
x²=2:2
x²=1
x=√1
x=1