8. 11ᵃ = 1331 va 7ᵇ = 343 bo‘lsa, a + b ning qiymatini toping.

1331 = 11³, shuning uchun a = 3. 343 = 7³, shuning uchun b = 3.

Javob: a + b = 3 + 3 = 6.