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Class 10 Mathematics Quadratic Equations Nature of RootsHardLevel 39

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If (x^2+px+q=0) has two equal real roots, which relation is correct?

Answer and explanation

Correct answer: (p^2=4q)

For equal roots, (D=0), so (p^2-4q=0) gives (p^2=4q). In exams, the formula becomes simpler when (a=1).

Related tags

Quadratic Equations Nature Of Roots Relation

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What is the correct answer to this question?

(p^2=4q)

Why is this the correct answer?

For equal roots, (D=0), so (p^2-4q=0) gives (p^2=4q). In exams, the formula becomes simpler when (a=1).

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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