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      Question

      src="https://www.ixambee.com/questionimage/Section/1647946784-30.PNG" alt="" />
      A 10(3+2√5) Correct Answer Incorrect Answer
      B 5+2√2 Correct Answer Incorrect Answer
      C 5(3+2√2) Correct Answer Incorrect Answer
      D 5-2√5 Correct Answer Incorrect Answer

      Solution

      15(√10 + √5) / √10 + √20 + √40 - √5 - √80 = ? = 15 (√10 + √5) / (√10 + 2√5 + 2√10 -√5 - 4√5) = 15 (√10 + √15) / 3√10 - 3√5 = 15(√10 + √5) / 3(√10 - √5) = 5(15 + 2√50) / 5 = 5(3 + 2√2)

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