how bout something like this greatest common factor and factor the expression 5ac^2-5ca^2
What is common in both sets besides the 5?
ac^2
actually it is just ac because in the first set c is squared and in the second set a is squared
ok
So start by pulling out that common term: ac (or ca however you want to look at it)
So now that ac is done what do you have left? ac(5c-5a) which is your answer :) It is important that you understand what is going on in factoring. Do you see how I got that answer?
so you pulled out the gcf and then thats what was left after correct
Exactly!!
so it could also be written as ca(5a-5c)
Yes. and You can always check your work to. Let me draw a picture for you on how to check your answer.
either answer is correct or is one more correct than the other for some reason
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