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4 October, 12:17

Factorise completely 3 (2a + 5) + 5 (a - 2)

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Answers (2)
  1. 4 October, 12:28
    0
    3 (2a+5) + 5 (a-2) = 6a+15+5a-10=11a+5
  2. 4 October, 12:45
    0
    Hi

    3 (2a+5) + 5 (a-2) = 3 (2a) + 3 (5) + 5 (a) + 5 (-2) = 6a+15 + 5a-10

    3 (2a+5) + 5 (a-2) = 6a+5a + 15-10 = 11a + 5

    Answer: 11a+5
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