Mathematics - Quadratic Equation Question with Solution | TestHub

MathematicsQuadratic EquationTheory of equationsEasy2 minPYQ_2005

MathematicsEasysingle choice

If roots of the equation $x^{2} - b x + c = 0$ be two consectutive integers, then $b^{2} - 4 c$ equals

Answer:

Solution:

Let $α, α + 1$ be roots $α + α + 1 = b α (α + 1) = c ∴ b^{2} - 4 c = (2 α + 1)^{2} - 4 α (α + 1) = 1.$

Stream:JEESubject:MathematicsTopic:Quadratic EquationSubtopic:Theory of equations

⏱ 2mℹ️ Source: PYQ_2005

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