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Question 7Asked in RRB JE CBT-1, 17 Dec 2024, Shift 1 (9:00 AM)

Write the expanded form of (5a + 6b + 8c)².

  1. A25a² + 36b² + 64c² + 64ab + 96bc + 80ac
  2. B25a² + 36b² + 64c² + 60ab + 91bc + 80ac
  3. C25a² + 36b² + 64c² + 60ab + 96bc + 80ac
  4. D25a² + 36b² + 64c² + 60ab + 96bc + 90ac
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Correct answer: (C) 25a² + 36b² + 64c² + 60ab + 96bc + 80ac

From RRB JE CBT-1 PYQ 17 Dec 2024, Shift 1 (9:00 AM)

This is question 7 of RRB JE CBT-1 PYQ 17 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.