Question

if a^3+b^3=200 and a×b=13 then find the value of a+b​

Answer 1

Step-by-step explanation:

a3 +b3 = (a+b) a2-ab+ b2 = 200 .........a3+b3 = (a+b)3 - 3ab ( a+b)= 200 .. so (a+b)3 (a+b) -3 ×13= 200. so (a+b)4 = 239 ....a+b =4√239