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Kaylin Ryan
Mathematics
4 October, 12:17
Factorise completely 3 (2a + 5) + 5 (a - 2)
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Jane Morales
4 October, 12:28
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3 (2a+5) + 5 (a-2) = 6a+15+5a-10=11a+5
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Keith Church
4 October, 12:45
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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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