A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 4 years ago
HELP!
Factor completely.
3x^2 + 12x + 9
anonymous
 4 years ago
HELP! Factor completely. 3x^2 + 12x + 9

This Question is Closed

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1356819863638:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0So for example 3w^2 + 12w + 9 = 3(w^2 + 4w +3) = 3(w^2 + w + 3w + 3) < how did they get this part?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Looks like they just separated 4w into w + 3w ?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0But if you are asking why they chose to do it that way, it is because this particular arrangement allows you to factor w^2 + w + 3w + w into w(w + 1) + 3(w + 1) = (w + 1)(w + 3). Alternatively you could have looked at w^2 + 4w + 3 and ask what two numbers multiply to 3 and add to 4? 1 and 3 Thus w^2 + 4w + 3 = (w + 1)(w + 3)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Ohhh... Thank you so much!

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0I meant to say: w^2 + w + 3w + "3" into w(w + 1) + 3(w + 1)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0I will correct that to avoid ambiguity

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Er..cannot edit posts here ;( nvm.
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.