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aflati x patrat + 1 supra x patrat stiind ca x+ 1 supra x =9

Răspuns :

(x+1)/x=9
1+1/x=9
1/x=8

(x²+1)/x²= 1+1/x²=1+(1/x)²= 1+1/8²=1+1/64=1 1/64=65/64

O seara buna!