# Can this trinomial be factored?

1. Sep 6, 2006

### Byrgg

My math teacher put up the answers from yesterday's homework, and she put DNF for one of the answers, which I'm assuming means does not factor. But I'm pretty sure I found a way to factor it, here's the trinomial:

3v^2 - 11v + 10

I factored it and came up with the following:

(3v - 5)(v - 2)

Was my teacher just wrong, or did I make a mistake?

2. Sep 6, 2006

### dmoravec

well when its multiplied out it equals the same thing. maybe DNF means 'did not finish'...maybe she wanted the 3 factored out for some reason. ie: 3(v-5/3)(v-2)

3. Sep 6, 2006

### Hootenanny

Staff Emeritus
Nope, your factorisation looks good to me, I would agree with you that your polynomial does indeed factor as you have shown.

Edit: I need to type faster!

4. Sep 6, 2006

### neutrino

Edit: And I need to type faster than Hoot!

5. Sep 6, 2006

### dmoravec

that makes me the fastest!!

6. Sep 6, 2006

### Byrgg

Ok, thanks for the help.

No, it wasn't my work that she put DNF on, she had an overhead screen, with all of the answers on it, and for that question, she simply put DNF.

7. Sep 6, 2006

### dmoravec

well i'd have to say she is mistaken