A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing

This Question is Closed

tafkas77
 one year ago
Best ResponseYou've already chosen the best response.0The equation looks like this: dw:1363123735015:dw

tafkas77
 one year ago
Best ResponseYou've already chosen the best response.0@zepdrix can you help me, please?

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1\[\large \frac{\left(\dfrac{4}{x+3}\right)}{\dfrac{1}{x}+3}\]Does this look accurate? :) I added the brackets so we can see which one is the fraction on top of the fraction :P

tafkas77
 one year ago
Best ResponseYou've already chosen the best response.0Aha! Yes, it's perfect. :)

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1Let's start by multiplying by \(\large \dfrac{x}{x}\).\[\large \frac{\left(\dfrac{4}{x+3}\right)}{\dfrac{1}{x}+3}\left(\frac{x}{x}\right)\]

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1Understand where to put the x within the brackets?

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1We can think of it like this, \[\large \frac{\left(\dfrac{4}{x+3}\right)x}{\left(\dfrac{1}{x}+3\right)x}\]

tafkas77
 one year ago
Best ResponseYou've already chosen the best response.0I believe so.... I'll end up with... 4x/3 for the top fraction? And 1 + 3x for the bottom fraction?

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1\[\large \frac{\left(\dfrac{4x}{x\color{orangered}{+3}}\right)}{\left(1+3x\right)}\]Hmm you were on the right track with your first guess :) you just missed this little orange part. See how the top x is multiplying the 4, and the bottom one multiplied both terms.

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1Woops I did the wrong portion in orange, my bad

tafkas77
 one year ago
Best ResponseYou've already chosen the best response.0I see my mistake... :) So was my second guess right? I changed my answer to \[\frac{4x }{ x^2 + 3x } \] while you were typing, sorry. :)

tafkas77
 one year ago
Best ResponseYou've already chosen the best response.0I didn't put it into 'fancy' form, though. :)

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1\[\large \frac{\left(\dfrac{4x}{x+3}\right)}{\left(1+3x\right)} \qquad = \qquad \frac{4x}{(x+3)(3x+1)}\]This part make sense? :o

tafkas77
 one year ago
Best ResponseYou've already chosen the best response.0yes; I see what you did. But how come the denominator of the first fraction isn't x^2? Why is it only "x"... we multiplied the x's, right?

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1Sorry for the delay :c I couldn't connect to the site for a bit there.

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1The top multiplication looks like this,\[\large \left(\frac{4}{x+3}\right)x\]Which we can think of as,\[\large \left(\frac{4}{x+3}\right)\frac{x}{1}\]Understand why it doesn't produce an x^2 in the bottom? :O We're not multiplying the x+3 by anything.

tafkas77
 one year ago
Best ResponseYou've already chosen the best response.0okay, I understand. Thank you for explaining that to me! :D I'm sorry it took me so long  the site wasn't working! Okay, so after I do all that, I got this as my answer: \[\frac{ 4x }{ 3x^2 + 10x + 3 }\] Is that right?

danielcvalencia
 one year ago
Best ResponseYou've already chosen the best response.0Welcome to OpenStudy, @tafkas77 !

tafkas77
 one year ago
Best ResponseYou've already chosen the best response.0@danielcvalencia Hee hee, thanks! :D But I am not new to OS! :) I have a 65 SmartScore  I've been here for a little while. This is just my first question in Algebra, not my first question ever. But I appreciate your kindness very much! :)

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1yah looks right c: good job.
Ask your own question
Ask a QuestionFind 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.