Question

Ifa + b = 8 and ab = 17,then find a^3+b^3​

Answer 1

Answer:

I THINK this is uour ANSWER ✌

Answer 2

Answer:

a+ b=8 ab=17

(a+b)^3= a^3+b^3+3ab(a+b)

substituting ab=17and a+b = 8

(8)^3=a^3+b^3+3*17(8)

64*8=a^3+b^3+51(8)

512=a^3+b^3+408

Transposing 408 to left hand side

512-408= a^3+a^3

104= a^3+b^3