Question

if x=1/2-√3 then value of (x^3-4x) is ​

Answer 1

Answer:

x = 1/ (2-√3 )

 = (2 + √3 ) / (4-3)

 = 2 + √3

(x^3-4x) = (2 + √3)^3 - 4 * (2 + √3)

            = 2 + √3 { (2 + √3 )^2 - 4 }

            = 2 + √3 { 3 + 4√3 }

            =  18 + 11√3 (answer )

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