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  • Utilizator Brainly
2014-06-26T11:54:22+03:00
√x-1=7(ridicam la patrat si rezulta)
x-1=49
x=50
2014-06-26T12:01:15+03:00

√x-1=7

(√x-1)²=7²

|x-1|=49

x-1=49

x=50

x-1=-49

x=-48