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What is the nature of the roots of the equation \(x^2-5x+3=0\)?

Answer and explanation

Correct answer: Two real, distinct and irrational

Here, \(a=1\), \(b=-5\), and \(c=3\). Therefore, the discriminant is \(D=b^2-4ac=(-5)^2-4(1)(3)=25-12=13\). Since \(D>0\), the roots are real and distinct. Because 13 is not a perfect square, the roots are irrational. Hence, option C is correct. Exam tip: \(D>0\) establishes that the roots are real and distinct; check whether \(D\) is a perfect square to decide whether they are rational or irrational.

Related tags

Quadratic-EquationsNature-Of-RootsDiscriminantIrrational-RootsNature Of RootsQuadratic EquationsMathematicsClass 10 Mcq

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