Răspunsuri

2014-11-13T22:52:57+02:00
X²:2²=(3²)²
X²:4=3⁴
X²:4=81
X²=81·4
X²=324
X=√324
X=18
2014-11-13T23:04:33+02:00
X^2/4=(3^2)^2
x^2/4=3^4
x^2=4*3^4
x^2=4*81
x^2=324
x=18