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What is the correct conclusion about the nature of the roots of \(7x^2+3x+2=0\)?

Answer and explanation

Correct answer: No real roots \((D=-47)\)

Here, \(a=7\), \(b=3\), and \(c=2\). Thus, the discriminant is \(D=b^2-4ac=3^2-4(7)(2)=9-56=-47\). Since \(D<0\), the equation has no real roots. Option B would be correct only if \(D=0\), but the discriminant here is negative. Exam tip: To determine the nature of the roots, first calculate the sign of \(D=b^2-4ac\).

Related tags

Quadratic EquationsNature Of RootsDiscriminantNo Real RootsClass 10 MathematicsMathematicsClass 10 Mcq

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