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13+2x² = x²-12
Determinati solutia ecuatiei


Răspuns :

13+2x²=x²-12
2x²-x²+12+13=0
x²=-25
xunu=5i
xdoi=-5i
nu are solutii
13+2x²= x²-12
2x²-x²=-12-13
x²=-25