A community for students.
Here's the question you clicked on:
 0 viewing
dddan
 2 years ago
please help!;
how do you find the solutions for x^4x^212=0
dddan
 2 years ago
please help!; how do you find the solutions for x^4x^212=0

This Question is Closed

tejasree
 2 years ago
Best ResponseYou've already chosen the best response.1(x^2  4)(x^2 + 3) = 0

dddan
 2 years ago
Best ResponseYou've already chosen the best response.0i just want to see if im right

tejasree
 2 years ago
Best ResponseYou've already chosen the best response.1x^2  4 = 0 (x2)(x+2) = 0 x=2,2

cwrw238
 2 years ago
Best ResponseYou've already chosen the best response.0let y = x^2 then y^2  y 12 = 0 can you solve this?

tejasree
 2 years ago
Best ResponseYou've already chosen the best response.1wait there are more solutions

cwrw238
 2 years ago
Best ResponseYou've already chosen the best response.0yup there will be 4 solution because the degree of the equation is 4

tejasree
 2 years ago
Best ResponseYou've already chosen the best response.1x^2 + 3 = 0 x^2 = 3 \[x = i \sqrt{3}, i \sqrt{3}\]

tejasree
 2 years ago
Best ResponseYou've already chosen the best response.1the solutions are: \[x = 2, 2, i \sqrt{3}, i \sqrt{3}\]

dddan
 2 years ago
Best ResponseYou've already chosen the best response.0i understand why there 4 solutions but where did you get them from?

tejasree
 2 years ago
Best ResponseYou've already chosen the best response.1First we factored them out, didnt we? then we set each factor equal to zero

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.0It might be easier to let z = x^2 so z^2 = x^4 which allows us to go from x^4x^212=0 to z^2z12=0

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.0solve z^2z12=0 and keep in mind that z = x^2 so you can solve for x

dddan
 2 years ago
Best ResponseYou've already chosen the best response.0o because it x^2=3 its the square root plus i right

dddan
 2 years ago
Best ResponseYou've already chosen the best response.0ok i got it  thank you so much guys

tejasree
 2 years ago
Best ResponseYou've already chosen the best response.1there you go @jim_thompson5910 :)

tejasree
 2 years ago
Best ResponseYou've already chosen the best response.1this site is really helpful: mathway.com

cwrw238
 2 years ago
Best ResponseYou've already chosen the best response.0@tegasree  u r correct
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.