Question

Simplfy the exppresion

x²+2x x²-1
----- * -----
4x+4 3x²+6x

Answer 1

\[\frac{ x(x+2) }{ 4(x+1) }*\frac{ (x-1)(x+1) }{ 3x(x+2) }\]

Answer 2

now cross cancel

Answer 3

:l

Answer 4

ok and i got x x-1
--- * -----
4 3x

Answer 5

There you go :D

Answer 6

way to prove me wrong :)

Answer 7

but thts not a answer chioce so what step do i have to do next lol and yea i know

Answer 8

multiply them?

Answer 9

Do you see any more common factors you can cancel out?

Answer 10

multiplying not adding :P

Answer 11

Or no...it's not addition lol whoops.

Answer 12

i was just bout to say tht

Answer 13

Hey, that's the ideal case: common denominator already done :-)

Answer 14

palmer's right.. as always

Answer 15

there's one more factor

Answer 16

yea x soo its x-1
-----
12

Answer 17

@Luigi0210 I wish that statement was a bit truer, but thanks! :-)

Answer 18

Yup :)

Answer 19

\[\large \frac{\color{red}x(x-1)}{\color{red}{3x}*4}\]

Answer 20

No problem :)

Answer 21

Don't think I stole anyone's problem here, at least that wasn't the intent! I'm reminded of the old Emerson quote: "there's no limit to what can be accomplished if it doesn't matter who gets the credit." :-)

Answer 22

I was just kidddaannnggg

Answer 23

haha sure you were.. jk :P

Answer 24

^_____^

Answer 25

screw medals.. who wants metal? ha

Answer 26

But seriously, medal, schmedal, I like seeing someone who didn't understand something before we all "helped" come away understanding it. Especially the people who come in saying "I really suck at math, my teacher can't explain anything"!

Answer 27

I suck at math.. my teacher didn't explain much to us :l

Answer 28

but hey I got you guys :D right? :l

Answer 29

i wonder what he could be writing, lol.

Answer 30

next top author!

Answer 31

That's right! I think one of the most valuable aspects of OS (though sometimes it is confusing as well) is seeing multiple approaches to a problem. I had math teachers who were generally fine teachers, but you just saw one way to do the problem. I saw a simple fraction arithmetic trick the other day that never would have occurred to me, and it is so much better than what I've been doing all these years...but because it uses some algebra, you wouldn't ordinarily learn it because everyone learns fractions first. It's worth the occasional abuse reports that come from explaining the work too quickly and revealing an answer rather than making the poster sweat for each line...

Answer 32

I liked the supposed plot twist, btw :-)

Answer 33

Yay I got palmer! :D but what about Jhan? :l
I got warned twice already -_-

Answer 34

But let's just say that a girl with as much facial hair as I have would have a tough time getting dates, even from math students :-)

Answer 35

Nice to know you have a beard. lololol.

Yes you have me too, Luigi :P
Palmer taught me.....word problems, lol.

Answer 36

I want a beard D:
and yes! :D

Answer 37

I'm still learning how to explain from Miss Jhann there >.>

Answer 38

Lol. my explanations get too carried away, and often overlooked.

Answer 39

well I love your explanations ^_^

Answer 40

Well, the important thing is that you're doing it. Like most things, you get better with some experience. A very wise teacher of mine told me that his secret to really understanding the material was teaching it to someone else.

Answer 41

haha thanks!

I cameto this website to refresh my basic math skills (algebra - word problems.., trig,geometry) :P And i've learned so much!

Answer 42

@whpalmer4 I've heard that before..

Answer 43

glad to hear :)

Answer 44

Quite possibly from me! He made a believer out of me, that's for sure. And like jb, I've picked up a lot from watching others here, both in how they approach explaining topics and learning new stuff!

Answer 45

You'd make a great teacher :)

Answer 46

Thanks! I've been practicing on my 10-year-old kid :-)

Answer 47

haha, too awesome.

Answer 48

yes you are Jhan :P
and haha awesome, do you have any plans on teaching?

Answer 49

nah, no plans other than informal stuff here. Real teachers have a more difficult job, they can't (or shouldn't) just walk away from the students who aren't eager to learn. Working with people who want to learn is fun, though! I particularly enjoy figuring out how to explain something to someone who almost gets it, but just hasn't seen quite the right explanation to make it click.