oneroot of \( x^{2}-x-k=0 \) is square of the other, thenk= (A) \( 2 \pm \sqrt{3} \) (B) \( 3 \p...

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oneroot of \( x^{2}-x-k=0 \) is square of the other, thenk=
(A) \( 2 \pm \sqrt{3} \)
(B) \( 3 \pm \sqrt{2} \)
(C) \( 2 \pm \sqrt{5} \)
(D) \( 5 \pm \sqrt{2} \)
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