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Choose the correct statement about the nature of the roots of \\(x^2+8x+18=0\\).

Answer and explanation

Correct answer: No real roots (\\(D=-8\\))

For a quadratic equation \\(ax^2+bx+c=0\\), the discriminant is \\(D=b^2-4ac\\). Here, \\(a=1,b=8,c=18\\), so \\(D=8^2-4(1)(18)=64-72=-8\\). Since \\(D<0\\), the equation has no real roots. Option B would be correct only if \\(D=0\\). Exam tip: Always check the sign of the discriminant before identifying the nature of the roots.

Related tags

Quadratic-EquationsNature-Of-RootsDiscriminantNo-Real-RootsClass-10-MathematicsNature Of RootsQuadratic EquationsMathematics

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