Question

if x is equal to 2 minus under root 3 find the value of x -one / x cube

Answer 1

x=2-√3
x-1/x^3
splitting the fraction we get
x-1/(2-✓3)^3
x-1(2+✓3)^3/{(2-√3)(2+✓3)}^3
x-1(2+√3)^3/(4-3)^3
x-1(2+√3)^3/1^3
(2-√3-1)(2+√3)^3
(1-√3)(8+3√3+6√3(2+√3)
8+3√3+12√3+18-8√3-9-36-18√3
-19-11√3

Answer 2

See the attachment for detail solution
Hope it will help you