# Math Help - Factoring Questions - Help!

1. See if you can hammer it into this shape:

$9(x+2y+z)^{2}-16(x-2y+z)^{2}=(14y-x-z)(7x-2y+7z)$

2. Originally Posted by CaptainBlack
No real factors
You sure?

$
3v^2-11v-10
$

It has real roots

3. Originally Posted by galactus
See if you can hammer it into this shape:

$9(x+2y+z)^{2}-16(x-2y+z)^{2}=(14y-x-z)(7x-2y+7z)$
I ended up getting (7x - 2y + 7z)(7x - 2y + 7z)

I went wrong somewhere. :S

EDIT: Nevermind, had my signs confused. I did end up getting (14y - x - z)(7x - 2y + 7z).

4. Originally Posted by Krizalid
You sure?

$
3v^2-11v-10
$

It has real roots
Oppss.. no rational factors

RonL

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