Question

If x3-1/x3= 52
what is the value of (x+1/x) ?

Answer 1

(a-b)^3 = a^3 - b^3 -3ab(a-b)
solve and get value of x-1/x

Answer 2

Then use expansion of (x-1/x)^2 to find value x^2+1/X^2 after that you can calculate x+1/x

Answer 3

@Devanshi can you solve from here?

Answer 4

@ankit042 how would I get the value of x2-1/x2 in the second equation?