SOLUTION: 12 � 4a � 3b � ab use factoring by grouping to factor it Please advise the answer.

Question 701316: 12 � 4a � 3b � ab
use factoring by grouping to factor it
Please advise the answer.
Answer by neatmath(302) (Show Source): You can put this solution on YOUR website!

given

group the terms to see if it will work

factor 4 out of the first group, and 3b out of the second

And you can see that we do have a common term of (3-a).

final factored form

Factoring by grouping can be fairly tricky.

But this is a good example of how it works.

It is not the most common of factoring methods, but it is good to be aware of.

I hope this helps! Keep practicing! :)

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