Răspunsuri

2014-08-09T18:10:52+03:00
√x²+1=x+1

√x² - x = 1 - 1
√x² - x = 0

√x² = ±x
Avem doua ecuatii:
E1:
x - x = 0
0 = 0
Aceasta ecuatie are o infinitate de solutii.

E2:
-x -x = 0
-2x = 0
=> x = 0