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The roots of a quadratic equations 2k^...

The roots of a quadratic equations ` 2k^(2) - 2k - 5=0 ` when the values of the coefficient a,b and c are being substitued in the formula , are

A

` k= ( -(-2) +- sqrt((-2)^(2) - 4( 2)(5)))/( 2)`

B

` k = (-+- sqrt((-2)^(2) - 4( 2)(-5)))/( 2(2))`

C

` k=( -(-2)+-sqrt( (-2)^(2) -4(2) (-5)))/( 2(2))`

D

` k= ( 2+- sqrt((2)^(2) - 4(2)(5)))/( 2(2))`

Text Solution

Verified by Experts

The correct Answer is:
C
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