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43 votes
43 votes
15+21 and you need to apply the Distributive Property to factor out the GCF

User Lay Leangsros
by
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1 Answer

13 votes
13 votes

Answer:

Explanation:

15 = 3 * 5

21 = 3 * 7

GCF = 3

15 + 21 = (3*5) + (3*7)

= 3*(5 + 7)

User Mwright
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