7k^2+9k

Question

7k^2+9k

mathstudent55 · Answer

What are you asked to do?

anonymous · Answer

a factor

kc_kennylau · Answer

Can you see a common factor in that?

kc_kennylau · Answer

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mathstudent55 · Answer

Is there a common factor between 7 and 9?

mathstudent55 · Answer

I thought @cashaunmoney45 was asking the question.
Correct, there is no common factor between 7 and 9.
Is there a common factor between k^2 and k?

mathstudent55 · Answer

No problem. I was asking the original poster since it's the poster who is asking for help.

mathstudent55 · Answer

Anyway, k^2 and k do have a factor of k in common.
Since the two terms of 7k^2 + 9k only have a factor of k in common, that is all you can factor out.

$7k^2 + 9k = k(7k + 9) $

That is the full factorization of 7k^2 + 9k.