<prompt> Acha x iwe nambari halisi chanya kiasi kwamba x - frac1x 3. Pata x frac1x.  <response>: Kuweka usawa wa x - frac1x 3, tunapatax2 - 2 frac1x2 9.Tukiongeza 4, tunapata x2 2 frac1x2 13, hivyokushoto x frac1x kulia2 13.Kwa kuwa x ni chanya,x frac1x sqrt13. 