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Question 79Asked in RRB JE CBT-1, 16 Dec 2024, Shift 1 (9:00 AM)

Write the expanded form of (8a + 3b + 9c)².

  1. A64a² + 9b² + 81c² + 48ab + 54bc + 144ac
  2. B64a² + 9b² + 81c² + 52ab + 54bc + 144ac
  3. C64a² + 9b² + 81c² + 48ab + 54bc + 154ac
  4. D64a² + 9b² + 81c² + 48ab + 49bc + 144ac
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Correct answer: (A) 64a² + 9b² + 81c² + 48ab + 54bc + 144ac

From RRB JE CBT-1 PYQ 16 Dec 2024, Shift 1 (9:00 AM)

This is question 79 of RRB JE CBT-1 PYQ 16 Dec 2024, Shift 1 (9:00 AM). 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.