Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing

This Question is Closed

itsjustme_lol Group TitleBest ResponseYou've already chosen the best response.0
im suppose to factor x^2+4 is this prime?
 one year ago

itsjustme_lol Group TitleBest ResponseYou've already chosen the best response.0
or (x+2)(x+2)
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.2
it will have complex factors. else its prime.
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.2
its NOT (x+2)(x+2)
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.2
\[a^2+b^2 = (a+ib)(aib)\]
 one year ago

itsjustme_lol Group TitleBest ResponseYou've already chosen the best response.0
ok wait a second
 one year ago

itsjustme_lol Group TitleBest ResponseYou've already chosen the best response.0
(x + 2)(x – 2) (x + 2)(x + 2) (x + 1)(x + 4) ao it couldnt be any of these? im so confused with this one question
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.2
no, it cannot be any of these. its prime, if we are considering only real factors.
 one year ago

itsjustme_lol Group TitleBest ResponseYou've already chosen the best response.0
ok. thankyou. i thought so, just was not sure. :) i appreicaite that.
 one year ago

whpalmer4 Group TitleBest ResponseYou've already chosen the best response.1
\[(x+2)(x2) = x^2 +2x  2x 4 = x^2 4\]\[(x+2)(x+2) = x^2 + 2x + 2x + 4 = x^2 + 4x + 4\]\[(x+1)(x+4) = x^2 + x + 4x + 4 = x^5 + 5x + 4\]
 one year ago

whpalmer4 Group TitleBest ResponseYou've already chosen the best response.1
That i in there in the (a+ib)(aib) does the trick of reversing the sign of the final term: \[(a+ib)(aib) = a^2 + aib  aib i^2b^2 = a^2  i^2b^2\]but \[ i^2 = 1\] so \[a^2i^2b^2=a^2(b^2)=a^2+b^2\]
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.2
welcome ^_^
 one year ago
See more questions >>>
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.