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

lindseyharrison Group TitleBest ResponseYou've already chosen the best response.0
I don't see the simplifies result @MarkRijckenberg
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.0
Is this the expression you're looking at? \[\frac{\frac{4x}{x^2  9}}{\frac{8x^2}{x^2 + 6x + 9}}\]
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.0
It's a bit ambiguous when written out horizontally like that. I recommend liberal use of parentheses.
 2 years ago

lindseyharrison Group TitleBest ResponseYou've already chosen the best response.0
Yes that is correct.
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.0
If you're going to enter it into a calculator (or wolframalpha), then you'll need to express it like this: (4x/(x^2  9)) / ((8x^2)/(x^2 + 6x + 9)) Even then, I tried that in wolframalpha, and it didn't give the fully simplified result.
 2 years ago

timo86m Group TitleBest ResponseYou've already chosen the best response.0
\[1/2\,{\frac {x+3}{ \left( x3 \right) x}}\]
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.0
Best first step is to express the fractiondivision as fractionmulitplication. (Division is defined as multiplication by the reciprcal.) Then factor the crap out of everything and see what cancels.
 2 years ago

timo86m Group TitleBest ResponseYou've already chosen the best response.0
from wolfram if you type it like this 4*x/((x^29)*(8*x^2/(x^2+6*x+9)))
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.0
Or you could just write it down and do the algebra . . .
 2 years ago

MarkRijckenberg Group TitleBest ResponseYou've already chosen the best response.0
Guys, both your formula's give the same results in WolfRam....
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.0
Yep, and neither shows Lindsey how to do it herself.
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.0
Intermediate step looks like this: \[\frac{4x}{(x+3)(x3)} \space \times \space \frac{(x+3)(x+3)}{8x^2}\]
 2 years 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.