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Class 10MathematicsQuadratic EquationsMethods of Solving Quadratic EquationsMediumLevel 34
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For which equation is the quadratic formula more convenient than factorisation?

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Answer and explanation

Correct answer: (x^2+x-1=0)

(x^2+x-1=0) has no simple integer factors, so the formula method is easier. In exams, the quadratic formula is safe in such cases.

Related tags

QuadraticMethod-SelectionQuadratic-Formula

Frequently asked questions

What is the correct answer to this question?

(x^2+x-1=0)

Why is this the correct answer?

(x^2+x-1=0) has no simple integer factors, so the formula method is easier. In exams, the quadratic formula is safe in such cases.

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Quadratic Equations. Topic: Methods of Solving Quadratic Equations.

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10 more MCQs
  1. 1Using factorisation method, what are the roots of (x^2-5x+6=0)?
  2. 2In factorisation method, how will (x^2+7x+12=0) be written?
  3. 3Which is the simplest method to solve (x^2-9=0)?
  4. 4If (x^2=16), what is the value of (x) by square root method?
  5. 5Using the zero-product rule, what are the solutions of x(x−4)=0?
  6. 6In completing square method for \(x^2+6x+5=0\), which number is added and subtracted?
  7. 7Which is the correct formula to find roots of (ax^2+bx+c=0) by quadratic formula?
  8. 8What do we get first after simplifying (2x^2-8=0)?
  9. 9What are the correct factors for (x^2-2x-8=0)?
  10. 10In which form can (x^2+4x+4=0) be written?
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