Question

It' a+b=8 and ab=15 then find the value of a+b³.

Answer 1

Answer:

123

Step-by-step explanation:

a+b=8 and ab=15, 15 appears when 3×5=15 and 15 has no other factors. So, the value of a+b cube :

a+b cube

3+5×5×5

=> 3+120 = 123