02-09-2016
Mathematics

contestada

rewrite the sum product of the gcf 9+15 and a new sum

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dalendrk dalendrk

02-09-2016

GCF(9; 15) = 3

9 = 3 · 3
15 = 3 · 5

9 + 15 = 3 · 3 + 3 · 5 = 3·(3 + 5)

Used distributive property: a(b + c) = ab + ac

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