SOLUTION: If (√3 -1) is a root of the equation (2x^2)-2kx+4=0 then k equals: A) 2 √3 -1 B) √3 -2 C) 2√3 D) √3 E) √3 -1

Algebra ->  Expressions-with-variables -> SOLUTION: If (√3 -1) is a root of the equation (2x^2)-2kx+4=0 then k equals: A) 2 √3 -1 B) √3 -2 C) 2√3 D) √3 E) √3 -1      Log On


   

Question 1169286: If (√3 -1) is a root of the equation (2x^2)-2kx+4=0 then k equals:
A) 2 √3 -1
B) √3 -2
C) 2√3
D) √3
E) √3 -1
Answer by Solver92311(821) About Me  (Show Source):
You can put this solution on YOUR website!


The two roots of the given equation are by the quadratic equation. Since the given root is the positive conjugate, the following must hold:



Unfortunately, there are no solutions to this equation, either in your list of answers or otherwise.

John

My calculator said it, I believe it, that settles it

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