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Subjects
Class 10MathematicsQuadratic EquationsRoots of a Quadratic EquationHardLevel 32
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If one root of (x^2+ax+a=0) is (2), what will be the other root?

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Answer and explanation

Correct answer: (-\frac{2}{3})

Putting (x=2) gives (4+3a=0), so (a=-\frac{4}{3}). The product is (a), so the other root is (-\frac{2}{3}).

Related tags

RootsParameterOther Root

Frequently asked questions

What is the correct answer to this question?

(-\frac{2}{3})

Why is this the correct answer?

Putting (x=2) gives (4+3a=0), so (a=-\frac{4}{3}). The product is (a), so the other root is (-\frac{2}{3}).

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Quadratic Equations. Topic: Roots of a Quadratic Equation.

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