The discriminant of 3x² +4x-a is one . Then the value of a is – InterviewSolution

1.	The discriminant of 3x² +4x-a is one . Then the value of a is
Answer» Correct option isD28Quadratic EQUATION: 3X 2 −4x−1=0Comparing the given equation with ax 2 +bx+c=0we have a=3,b=−4,c=−1Now, discriminantD=b 2 −4ac=(−4) 2 −4(3)(−1)=16+12=28.

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