Question

find the value plzz​

Answer 1

simple cube on both side

u will get

3(x^1/3-1/x^1/3)=8

x^1/3-1/x^1/3 =8

now sqauring both side we get

x^2/3+1/x^2/3 -2×1=64

x^2/3 +1/x^2/3=62...i)

now,

(x^1/3+1/x^1/3)^2=x^2/3+1/x^2/3 +2

putting the value from i)

x^1/3+1/x^1/3=(62+2)^1/2

=(64)^1/2=√64=8

so,8 is the answer