A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 4 years ago
How do I solve this?
x^2/3 + 4x^1/3 + 3 = 0
anonymous
 4 years ago
How do I solve this? x^2/3 + 4x^1/3 + 3 = 0

This Question is Closed

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Factorize it as : (x^(1/3)+1) (x^(1/3)+3) = 0

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0sorry, wrong didn't see the +3

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0x never equals zero though... i don't think

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0There are no solutions,I suppose

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0are you sure you wrote the problem correctly?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Thanks, I'm still confused...I will retype the question...

Xishem
 4 years ago
Best ResponseYou've already chosen the best response.0How do you figure that x never equals 0?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0@ xishem try substituting x = 0

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Solve the equation. x^2/3 + 4x^1/3 + 3 = 0 I think when solving for x, the equation is set equal to zero...

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0@studioso33 is it x^(2/3)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0IT has no solutions; plot it and see

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0it has no solution as written in the real numbers, there are nonreal answers however

Xishem
 4 years ago
Best ResponseYou've already chosen the best response.0\[f(1)=x^{2/3}+4x^{1/3}+3=(1)^{2/3}+4(1)^{1/3}+3=14+3=0\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0SalvatoreTRM, I'm not sure? I've never typed out equations before!

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0does it look like Xishem wrote it?

Xishem
 4 years ago
Best ResponseYou've already chosen the best response.0I plotted, and there are two solutions.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Sorry, I'm new here...you guys are far more advanced at math than I! Yes, looks like Xishem wrote it...

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0ok then yes, Ireneoseaspe is right and Xishem as well. x=27 and 1

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Xishem, how to I plot and find solutions myself? Are you all using graphing calculators?

Xishem
 4 years ago
Best ResponseYou've already chosen the best response.0Why is Wolfram plotting it like this? http://www.wolframalpha.com/input/?i=x%5E%282%2F3%29%2B4x%5E%281%2F3%29%2B3

Xishem
 4 years ago
Best ResponseYou've already chosen the best response.0@studio: I didn't find the original solutions graphically, but rather by factoring and setting each of the factors equal to zero separately.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Ok, i take it back, no solutions. Viva wolfram

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Thank you all...it will take time for me to get used to this online tutoring...I will be in here ALOT!

Xishem
 4 years ago
Best ResponseYou've already chosen the best response.0Wolfram is wrong. Take a look at THIS plot, which is just a factorization of the original. http://www.wolframalpha.com/input/?i=%281%2Bx%5E%281%2F3%29%29+%283%2Bx%5E%281%2F3%29%29&lk=1&a=ClashPrefs_*Math Both the math and my graphing calculator tell me that there are two solutions.

Xishem
 4 years ago
Best ResponseYou've already chosen the best response.0\[(x^{1/3}+1) (x^{1/3}+3) = 0\]\[x^{1/3}+1=0 \rightarrow x^{1/3}=1 \rightarrow x=(1)^3 \rightarrow x=1\]You can't deny that there are solutions.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0If you put x = 1 you get 3 not 0

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0x^2/3 + 4x^1/3 + 3 = 0 u=x^1/3 u^2 + 4u + 3 = 0 (u + 3)(u + 1) = 0 u= 3,u=  1 u=x^1/3 3 = x^1/3 (3)^3 = (x^1/3)^3 27 = x u=x^1/3 1 = x^1/3 (1)^3 = (x^1/3)^3 1 = x

Xishem
 4 years ago
Best ResponseYou've already chosen the best response.0Aron: Show your work. I get 0 every time.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0@Irene if you substitute the values you wont get 0.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Xishem, do you know robby mayasich?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0nvm, your profile pic reminded me of someone

Xishem
 4 years ago
Best ResponseYou've already chosen the best response.0http://www.wolframalpha.com/input/?i=%281%29%5E%281%2F3%29 Wolfram also thinks that is true. Weird.

Xishem
 4 years ago
Best ResponseYou've already chosen the best response.0And that error would explain why WolframAlpha doesn't give the correct answers.

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

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0x^2/3 + 4x^1/3 + 3 = 0 (27)^2/3 + 4(27)^1/3 + 3 = 0 \[\sqrt[3]{27^{2}} + 4\sqrt[3]{27} + 3 = 0\] \[\sqrt[3]{729} + 4(3) + 3 = 0\] \[9 12 + 3 = 0\] \[3 + 3 =0\] 0=0
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.