<prompt> Acha a,b, na c ziwe nambari changamano tofauti kama hizoanzaaligna3 2a 5, b3 2b 5, c3 2c 5.endalignTafuta a3 b3 c3.  <response>: Kuongeza equations zilizotolewa, tunapataa3 b3 c3 2a b c 15.Tunaona kwamba a, b, na c ndio mizizi ya x3 - 2x - 5 0. Kwa fomula za Vieta, a b c 0, hivyo a3 b3 c3 15. 