alleryThe exact roots of 2x²−4x−1=0 are
A(−2±√6)/2
B(2±√3)/2
C(4±√6)/2
D(2±√6)/2
Answer & Solution
Correct answer: D. (2±√6)/2
The quadratic formula gives (4±√24)/4, equivalent to (2±√6)/2.
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