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Question 96Asked in RRB JE CBT-1, 16 Dec 2024, Shift 3 (4:30 PM)

Write the expanded form of (3a + 6b + 5c)².

  1. A9a² + 36b² + 25c² + 40ab + 60bc + 30ac
  2. B9a² + 36b² + 25c² + 36ab + 60bc + 30ac
  3. C9a² + 36b² + 25c² + 36ab + 60bc + 40ac
  4. D9a² + 36b² + 25c² + 36ab + 55bc + 30ac
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Correct answer: (B) 9a² + 36b² + 25c² + 36ab + 60bc + 30ac

From RRB JE CBT-1 PYQ 16 Dec 2024, Shift 3 (4:30 PM)

This is question 96 of RRB JE CBT-1 PYQ 16 Dec 2024, Shift 3 (4:30 PM). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.