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Quantitative - Mathematics - Algebra:

Basics of Algebra

MCQ - 2-14066

Question:

If a - b = 3 and a2 + b2 = 29, find the value of ab.

  1. 10
  2. 12
  3. 15
  4. 12

Correct Answer: A

Explanation:

2ab = (a2 + b2) - (a - b)2

= 29 - 9 = 20

ab = 10

Record Performance

2 MCQ for effective preparation of the test of Basics of Algebra of Algebra section.

Read the MCQ statement: If a - b = 3 and a2 + b2 = 29, find the value of ab., keenly and apply the method you have learn through the video lessons for Basics of Algebra to give the answer. Record your answer and check its correct answer and video explanation for MCQ No. 2-14066.

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Solve the question for MCQ No. and decide which option (A through D/E) is the best choice to answer the MCQ, then click/tap the blue button to view the correct answer and it explanation.

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