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Which statement correctly describes the nature of the roots of the quadratic equation \(5x^2+x+1=0\)?

Answer and explanation

Correct answer: No real roots \((D=-19)\)

For a quadratic equation \(ax^2+bx+c=0\), the discriminant is \(D=b^2-4ac\). Here, \(a=5, b=1, c=1\), so \(D=1^2-4(5)(1)=-19\). Since \(D<0\), the equation has no real roots; therefore, option A is correct. Exam tip: \(D<0\) means no real roots, \(D=0\) means equal real roots, and \(D>0\) means two distinct real roots.

Related tags

Quadratic EquationsNature Of RootsDiscriminantNo Real RootsClass 10 MathematicsMathematicsClass 10 Mcq

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