Question

If a3+b3= 8 & a2+b2= 4 ; then a+b =?​

Answer 1

let teke a=2 and b=0 then

a3 + b3 =2^3+ 0= 8

and a2 + b2 = 2^2 + 0 =4 then

a+ b = 2 +0 = 2