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Question 24Asked in RRB JE CBT-1, 16 Dec 2024, Shift 3 (4:30 PM)

Write the expanded form of (4a + 6b + 9c)².

  1. A16a² + 36b² + 81c² + 48ab + 103bc + 72ac
  2. B16a² + 36b² + 81c² + 48ab + 108bc + 82ac
  3. C16a² + 36b² + 81c² + 52ab + 108bc + 72ac
  4. D16a² + 36b² + 81c² + 48ab + 108bc + 72ac
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Correct answer: (D) 16a² + 36b² + 81c² + 48ab + 108bc + 72ac

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

This is question 24 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.