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GMAT Quadratic — practice questions

Explore 3 free Quadratic questions in GMAT Quantitative Reasoning. Open each question or exercise to read its content, reference answers and available explanation.

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Quadratic questions and exercises with answers

Showing questions 1–3 of 3.

If x² = 49 and x < 0, x =Read the answer and worked solution →Roots of x² − 5x + 6 = 0 are:Read the answer and worked solution →Sum of roots of x² − 7x + 10 = 0 is:Read the answer and worked solution →

Worked practice questions

If x² = 49 and x < 0, x =

  1. 7
  2. −7
  3. −49
  4. 0
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Correct answer: B. −7

1. x² = 49 → x = ±7. 2. x < 0 → x = −7. _Source: 501-GMAT-Questions Section 4 / Manhattan Quant Bank_

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Roots of x² − 5x + 6 = 0 are:

  1. −2, 3
  2. 1, 6
  3. 2, 3
  4. 5, 6
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Correct answer: C. 2, 3

1. Factor: (x−2)(x−3) = 0. 2. x = 2 or 3. _Source: 501-GMAT-Questions Section 4 / Manhattan Quant Bank_

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Sum of roots of x² − 7x + 10 = 0 is:

  1. 10
  2. −7
  3. −10
  4. 7
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Correct answer: D. 7

1. Sum = −(−7) = 7. _Source: 501-GMAT-Questions Section 4 / Manhattan Quant Bank_

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More Quantitative Reasoning topics

Modern MathematicsQuantitative ReasoningAlgebraPermutations and CombinationsLogical ReasoningQuantitative AptitudeAverages and MixturesSimple and Compound Interest