Maths help ,,,,agggainnn

[Brian d marge]

Sorry about this , but i keep getting the same answer , pretty sure somethings askew , as when I use this computer thingy it plots whot it should ( probably tired and cant see wood for trees

need to expand

0= ( X+7) ( X+3 ) ( X-2 )

the answer I keep getting is X^3 +8X^2+x -48

got a feeling thats a crap answer

Thanks in advance

Stephen

[peasea]

Sorry about this , but i keep getting the same answer , pretty sure somethings askew , as when I use this computer thingy it plots whot it should ( probably tired and cant see wood for trees

need to expand

0= ( X+7) ( X+3 ) ( X-2 )

the answer I keep getting is X^3 +8X^2+x -48

got a feeling thats a crap answer

Thanks in advance

Stephen

I'm no maths genius but I reckon you're right with your suggestion that it's a crap answer.

It's also a crap question.

WTF?

[spookytooth]

just get rid of the x its a letter not a number then its 7 or just go with xxxx and the ansers beer

[NighthawkNZ]

0= ( X+7) ( X+3 ) ( X-2 )
got a feeling thats a crap answer


42 :D









......

[peasea]

just get rid of the x its a letter not a number then its 7 or just go with xxxx and the ansers beer

Everyone loves an Einstein.........

or any stein for that matter.........

[KoroJ]

Might be: x^3 + 8x^2 + x - 42 ??

but it's been a long time since I did any of this stuff.

[spookytooth]

One afternoon at Cheers, Cliff Clavin was explaining the Buffalo Theory to his buddy Norm.
Here's how it went:

"Well ya see, Norm, it's like this. A herd of buffalo can only move as fast as the slowest buffalo. And when the herd is hunted, it is the slowest and weakest ones at the back that are killed first. This natural selection is good for the herd as a whole, because the general speed and health of the whole group keeps improving by the regular killing of the weakest members. In much the same way, the human brain can only operate as fast as the slowest brain cells. Excessive intake of alcohol, as we know, kills brain cells. But naturally, it attacks the slowest and weakest brain cells first. In this way, regular consumption of beer eliminates the weaker brain cells, making the brain a faster and more efficient machine. That's why you always feel smarter after a few beers."

[The Pastor]

THis is the expansion

[x^3] +[8x^2] -[5x] -[84]

I put the [] around so u can see the individual terms.

[doc]

x = 42 yep go for it

[doc]

THis is the expansion

[x^3] +[8x^2] -[5x] -[84]

I put the [] around so u can see the individual terms.
you haven't given an answer.

[LardEmbargo]

I dunno.

I got


x^3

+ 8x^2

+ x

= 42

so maybe x = 2?

but I probably arsed it up somewhere. It's maffs innit.

[doc]

I dunno.

I got


x^3

+ 8x^2

+ x

= 42

so maybe x = 2?

but I probably arsed it up somewhere. It's maffs innit.
Stay inside the square man. Unless your a freek !!!!

[LardEmbargo]

ok so now I've submitted it there's no way that can be right.

-sigh- I'm such a tard.

Back to the vegetable maffs class for me :(

[Jantar]

you haven't given an answer.
He has. But its the wrong answer.

KoroJ got it correct. Remember the task is to expand, not to solve.

LardEmbargo has solved it correctly.

[The Pastor]

you haven't given an answer.

Didnt say I had.


He didnt ask for one either.

[peasea]

One afternoon at Cheers, Cliff Clavin was explaining the Buffalo Theory to his buddy Norm.
Here's how it went:

"Well ya see, Norm, it's like this. A herd of buffalo can only move as fast as the slowest buffalo. And when the herd is hunted, it is the slowest and weakest ones at the back that are killed first. This natural selection is good for the herd as a whole, because the general speed and health of the whole group keeps improving by the regular killing of the weakest members. In much the same way, the human brain can only operate as fast as the slowest brain cells. Excessive intake of alcohol, as we know, kills brain cells. But naturally, it attacks the slowest and weakest brain cells first. In this way, regular consumption of beer eliminates the weaker brain cells, making the brain a faster and more efficient machine. That's why you always feel smarter after a few beers."

Best answer yet.
Or
Buffalo+(alc)+prarie_running=losing/race/vs.manwith.weapon=lessbuffalo

Quite right

42

[Brian d marge]

Sorry bout that busy day brain fade ,,, going round in circles . yes the question was , what do you reckon on this answer, i reckon its crap ?

Answer , because after I went down the garage and did some work I came back and it all came clear
the answer to life and all things was indeed 42

in the end i got X^3 +8x^2+x-42

which is what it should be .. as when I plot it , it fits over the data . , and all is well in the valley

Thanks one and all , Hope I can return the favor sometime

Stephen

[Disco Dan]

need to expand

0= ( X+7) ( X+3 ) ( X-2 )


0 = ( X + 7 )

( X + 3 )


( X -2 )


*expanded* :innocent: :shutup:

[Albino]

Bah editing not working. how do I delete a post

[hazard02]

Answer with bonus working:

(x+7)(x+3)(x-2)=0
(x^2 + 10x +21)(x-2)=0
(x^3 + 8x^2 +x -42)=0

Do I get a gold star?

[hazard02]

Thanks one and all , Hope I can return the favor sometime


I'll take you up on that.

Use the method of laplace transforms to find a solution of the initial value problem

[Brian d marge]

Answer with bonus working:

(x+7)(x+3)(x-2)=0
(x^2 + 10x +21)(x-2)=0
(x^3 + 8x^2 +x -42)=0

Do I get a gold star?

I cant afford a BSA on my money !!!! but yes thanks for the help

Stephen

[rogson]

x = 2 is one answer.
x = -7 and x = -3 are the other two.

Look at the equation - anything multplied by zero is zero.

[Maha]

All you needed to do was Calculate the compound interest of a Parabolic fration and divide it by the time it takes two men to mow a field of 6 acres....:yes:

[The Stranger]

All you needed to do was Calculate the compound interest of a Parabolic fration and divide it by the time it takes two men to mow a field of 6 acres....:yes:

You had that record too old timer?

[Drum]

x = 2 is one answer.
x = -7 and x = -3 are the other two.

Look at the equation - anything multplied by zero is zero.

Yep, but problem was to expand it, not solve it.

[Maha]

You had that record too old timer?

As luck would have it....CD also....:banana:
You dont know how fortunate are the circumstances mate

[Brian d marge]

The original question , was to find the time it too 2 Irish navies to dig 1/2 a hole and to fin the maxima and minima of the work rate so that i could reschedule tea breaks

they were most active just after sunrise , at X = 7

Stephen

[avgas]

Might be: x^3 + 8x^2 + x - 42 ??

but it's been a long time since I did any of this stuff.

Just did some scribble on paper and i think this guy is right.
Of course its true form would be either
0 = x^3 + 8x^2 + x - 42
or
42 = x^3 + 8x^2 + x
which we all know is the answer to the universe

[avgas]

I'll take you up on that.

Use the method of laplace transforms to find a solution of the initial value problem

Yes but what is the field effect for a point charge an infinite distance away..........God damn modelling

[Horney1]

x = 2 is one answer.
x = -7 and x = -3 are the other two.

Look at the equation - anything multplied by zero is zero.


I second the 2. (I didn't try the other two possibilities)

yes, I know that's solved not expanded but I plugged some numbers in a couple of the "solutions" on the first page and they don't give the same results as the initial question. So maybe they're incorrect if the expanded answer is just a variation on that question? Just a thought, it's been a long time since I've been near those!...