
subiedude
SUBIE!!!
Registered: 02/06/09
Posts: 1,547
Loc: Colorado
Last seen: 6 months, 3 hours

Stupid math question
#11232685  10/12/09 01:52 PM (8 years, 11 months ago) 


real quick.. what is:
y^{2}+5y ?
can it be broken down any?
Edited by subiedude (10/12/09 01:53 PM)

Tedwilto
Veni, vidi, vici
Registered: 12/09/08
Posts: 5,158
Loc: Sunny Afternoon in
Last seen: 7 years, 1 month

Re: Stupid math question [Re: subiedude]
#11232699  10/12/09 01:53 PM (8 years, 11 months ago) 


y=0 or y=5
thats if y^{2}+5y=0

Song of the week, click Huey:
Song of the week list in journal.

PMasterPoo
Stranger
Registered: 09/15/09
Posts: 110
Last seen: 8 years, 1 month

Re: Stupid math question [Re: subiedude]
#11232701  10/12/09 01:54 PM (8 years, 11 months ago) 


it depends, what does it equal?
does it equal x or 5, or what?
there's way too many variables for the equation, what are the instructions? are you trying to get an answer or a factor or what?
the only thing i can think of is y(y+5)
Edited by PMasterPoo (10/12/09 01:55 PM)

PMasterPoo
Stranger
Registered: 09/15/09
Posts: 110
Last seen: 8 years, 1 month

Re: Stupid math question [Re: Tedwilto]
#11232703  10/12/09 01:54 PM (8 years, 11 months ago) 


Quote:
Tedwilto said: y=0 or y=5
thats if y^{2}+5y=0
exactly.

learningtofly
Ancient Aliens
Registered: 05/21/07
Posts: 15,105
Loc: Out of this world
Last seen: 7 years, 1 month

Re: Stupid math question [Re: Tedwilto]
#11232705  10/12/09 01:54 PM (8 years, 11 months ago) 


the derivative is 2y+5. does that help?


g00ru
lit pants tit licker
Registered: 08/09/07
Posts: 21,079
Loc: georgia, us
Last seen: 7 months, 26 days

Re: Stupid math question [Re: subiedude]
#11232708  10/12/09 01:55 PM (8 years, 11 months ago) 


That's already simplified. if you factor it its y(y+5). But I can't think of any answer to your question unless you're plugging in a value.
 check out my music!
drowse in prison and your waking will be but loss

DragonChaser
Ice in Her Ass and Pussy
Registered: 04/27/06
Posts: 7,212
Last seen: 10 months, 10 days

Re: Stupid math question [Re: PMasterPoo]
#11232709  10/12/09 01:55 PM (8 years, 11 months ago) 


Quote:
PMasterPoo said: the only thing i can think of is y(y+5)
You got it, and from that, y=0 or 5.
Unless you're in complex variables, then there are several more answers in the imaginary plane.
 My name is Mud

learningtofly
Ancient Aliens
Registered: 05/21/07
Posts: 15,105
Loc: Out of this world
Last seen: 7 years, 1 month


i mean if you really wanted to you could put i^4 everywhere. but.. thats pointless


subiedude
SUBIE!!!
Registered: 02/06/09
Posts: 1,547
Loc: Colorado
Last seen: 6 months, 3 hours

Re: Stupid math question [Re: PMasterPoo]
#11232721  10/12/09 01:58 PM (8 years, 11 months ago) 


solving rational equations
i gotta find the lcd with the denomonators being:
y^{2}+5y
y+5
and..
y.
so what would the lcd be
Edited by subiedude (10/12/09 02:00 PM)

learningtofly
Ancient Aliens
Registered: 05/21/07
Posts: 15,105
Loc: Out of this world
Last seen: 7 years, 1 month

Re: Stupid math question [Re: subiedude]
#11232734  10/12/09 02:01 PM (8 years, 11 months ago) 


lowest common denominator?
I would leave it as y(y+5)
Thats about as far as you can go.


subiedude
SUBIE!!!
Registered: 02/06/09
Posts: 1,547
Loc: Colorado
Last seen: 6 months, 3 hours

Re: Stupid math question [Re: subiedude]
#11232735  10/12/09 02:02 PM (8 years, 11 months ago) 


so lcd would be:
y(y+5), right?

subiedude
SUBIE!!!
Registered: 02/06/09
Posts: 1,547
Loc: Colorado
Last seen: 6 months, 3 hours

Re: Stupid math question [Re: subiedude]
#11232737  10/12/09 02:03 PM (8 years, 11 months ago) 


ok thanks guys
i love the shroomery

learningtofly
Ancient Aliens
Registered: 05/21/07
Posts: 15,105
Loc: Out of this world
Last seen: 7 years, 1 month

Re: Stupid math question [Re: subiedude]
#11232742  10/12/09 02:04 PM (8 years, 11 months ago) 


ya shroomery > math tutor. lol
i do the same thing though.


PMasterPoo
Stranger
Registered: 09/15/09
Posts: 110
Last seen: 8 years, 1 month

Re: Stupid math question [Re: subiedude]
#11232774  10/12/09 02:08 PM (8 years, 11 months ago) 


Quote:
subiedude said: solving rational equations
i gotta find the lcd with the denomonators being:
y^{2}+5y
y+5
and..
y.
so what would the lcd be
wait, you mean there's three different denominators? that doesn't make sense...
then what's the numerator?
you must not be giving us all the information...

DragonChaser
Ice in Her Ass and Pussy
Registered: 04/27/06
Posts: 7,212
Last seen: 10 months, 10 days


Quote:
learningtofly said: i mean if you really wanted to you could put i^4 everywhere. but.. thats pointless
Not quite that simple.
Have you taken a class on complex variables? I'm not talking about when they introduce the topic of sqrt(1) in Algebra 2, I'm talking about a college course on the complex domain.
 My name is Mud

I AM SWIM
doin' thangs
Registered: 12/24/08
Posts: 9,695
Loc: Feels Changsta Man
Last seen: 6 years, 3 months

Re: Stupid math question [Re: subiedude]
#11232820  10/12/09 02:14 PM (8 years, 11 months ago) 


Quote:
subiedude said: solving rational equations
i gotta find the lcd with the denomonators being:
y^{2}+5y
y+5
and..
y.
so what would the lcd be
if you have all those in the denominator, you would multiply each by each other to get the LCD.
so your LCD would be (y^{2}+5y)(y+5)(y)

DragonChaser
Ice in Her Ass and Pussy
Registered: 04/27/06
Posts: 7,212
Last seen: 10 months, 10 days

Re: Stupid math question [Re: I AM SWIM]
#11232855  10/12/09 02:21 PM (8 years, 11 months ago) 


Why doesn't OP just post the whole fucking problem?
 My name is Mud

subiedude
SUBIE!!!
Registered: 02/06/09
Posts: 1,547
Loc: Colorado
Last seen: 6 months, 3 hours


3y+5 over y^{2}+5y + y+4 over y+5 = y+1 over y
solve the rational equation
Note: i dont know how to make fractions on here so i just used the word "over" as the fraction bar

g00ru
lit pants tit licker
Registered: 08/09/07
Posts: 21,079
Loc: georgia, us
Last seen: 7 months, 26 days

Re: Stupid math question [Re: subiedude]
#11232931  10/12/09 02:34 PM (8 years, 11 months ago) 


(mathy shit)/(more mathy shit) is how I normally do fractions.
 check out my music!
drowse in prison and your waking will be but loss

I AM SWIM
doin' thangs
Registered: 12/24/08
Posts: 9,695
Loc: Feels Changsta Man
Last seen: 6 years, 3 months

Re: Stupid math question [Re: subiedude]
#11233165  10/12/09 03:19 PM (8 years, 11 months ago) 


Quote:
subiedude said: 3y+5 over y^{2}+5y + y+4 over y+5 = y+1 over y
solve the rational equation
Note: i dont know how to make fractions on here so i just used the word "over" as the fraction bar
your LCD would be
(y^2+5y)(y+5)(y)
the '^ sign' implies that the y is raised to a power.
You multiply the LCD by each fraction and do the appropriate cancellation.
Eventually you will get
(3y+5)(y^2+5y) + (y+4)(y^3+5y) = (y+1)(y^3+10y^2+25y)
=
(3y^3+20y^2+25y) + (y^4+5y^2+4y^3+20y) = (y+1)(y^3+10y^2+25y)
then
y^4 + 7y^3 + 25y^2 + 45y = (y+1)(y^3+10y^2+25y)
then
(y^4 + 11y^3 +35y^2 +25y) = (y^4 + 7y^3 + 25y^2 + 45y)
so the statement is not true.
unless i did some thang wrong.
or you could move the right side to the left side and set it equal to zero.
or
(4y^3+10y^2) = 20
y = 10  y^2 ALL over 4
I could be wrong. how about you give it a try and see what you come up with.

