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Class 10MathematicsQuadratic EquationsNature of RootsMediumLevel 37
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If (2x^2-8x+c=0) has equal roots, what is the value of (c)?

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Answer and explanation

Correct answer: (8)

For equal roots (D=0), so ((-8)^2-4(2)c=0) gives (c=8). Be careful with signs while substituting coefficients.

Related tags

Quadratic-EquationsParameterEqual-Roots

Frequently asked questions

What is the correct answer to this question?

(8)

Why is this the correct answer?

For equal roots (D=0), so ((-8)^2-4(2)c=0) gives (c=8). Be careful with signs while substituting coefficients.

Which subject and chapter does this question cover?

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

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