<prompt> Kama x y ni sawa na 6 na x2-y2 ni sawa na 12, basi ni nini x-y?  <response>: Kwa kuwa xy6 x2-y212 tunahitaji kupata x-y. Suluhisho: Tunaweza kuandika x2-y2 kama xy x-y. Hivyo, tuna: xy x-y 12 Kuweka xy6, tunapata: 6 x-y12 Kufanya rahisi, tunapata: x-y2 