Question

if a+b =11anda^2 + b ^2 = 61 find the value of a^3 + b^3​

Answer 1

Answer:

Answer is 341

Explanation:

(a + b)^2 = a^2 + b^2 + 2ab

121 = 61 + 2ab

ab = 30

a^3 + b^3 = (a + b)*(a^2 + b^2 - ab)

= 11 * (61 - 30)

= 11 * 31

= 341