## anonymous one year ago Help solve, please. pq + qr - pq^2r Will give medal

1. anonymous

\[pq + qr -pq^2r\]

2. anonymous

What are you solving for?

3. anonymous

Factorize, sorry. I am supposed to factorize this polynomial -

4. anonymous

What do you think the first step should be?

5. anonymous

I know what the first step is, I think. I'm supposed to find the GCF of the whole thing.

6. anonymous

Sorry.. there are FOUR terms, so you were correct. First find the GCF :)

7. anonymous

No problem :) So, I need to split the middle term? I'm not sure how I should do that.

8. anonymous

Sorry, algrebra and I don't get alone, haha

9. anonymous

You will learn that later on :) This is a factoring by grouping problem.

10. anonymous

What do you think the GCF of this polynomial is?

11. anonymous

Okay, so this is where I am having the problem. I know how to factorize by grouping, but for this particular problem I am stuck on how to find the gcf.

12. anonymous

|dw:1434403822581:dw|

13. anonymous

The GCF is negative q. Reason why is because it is used in all terms. Sometimes you have special cases like these that the sign won't always correspond with the problem.

14. anonymous

Oh, that makes sense!

15. anonymous

You got it from here? I can verify your answer once you're done :)

16. anonymous

I think so. I got an answer of \[q(p+r - pqr)\]

17. anonymous

So close! You mixed up your signs a bit

18. anonymous

|dw:1434404084887:dw|

19. anonymous

Oh! I see now. Thank you so much for your help! :)

20. anonymous

Awesome! Love to see that from the ones I help. I love factoring.. once you get the hang of it, it'll flow out just like water. :)

21. anonymous

I hope so :)