Răspunsuri

2014-11-11T01:10:59+02:00
 x^{2} : 2^{2}= 5^{4}  ⇔ x²= 5^{4} ·2² ⇔ x= \sqrt{ 5^{4}.2^{2}  } ⇔x=5²·2⇔x=25·2⇔x=50