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21a + 9......,.......

User RamBen
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2 Answers

4 votes

Answer:

What is the full question?

Explanation:

User JesuLopez
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5 votes

Answer:

I think you have to factor 3 out of 21a+9 which is 3(7a+3). I hope this helps:)

Explanation:

User Stuti
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