Question

Factor the algebraic expression 21a + 9

Answer 1

`3(7a+3)`

Explanation:

Answer 2

21a + 9

Simplifying

21a + 9

Reorder the terms:

9 + 21a

Factor out the Greatest Common Factor (GCF), '3'.

3(3 + 7a)

Final result:

3(3 + 7a)

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