FAO: Anyone whos good at maths? - Corsa Sport - for Vauxhall and Opel Corsa B, Corsa C and Corsa D

Not logged in [Login - Register]

You Are Not Registered Or Not Logged In

Corsa Sport » Message Board » General Chat » FAO: Anyone whos good at maths?

New Topic

New Poll

Subscribe | Add to Favourites

You are not logged in and may not post or reply to messages. Please log in or create a new account or mail us about fixing an existing one - register@corsasport.co.uk

There are also many more features available when you are logged in such as private messages, buddy list, location services, post search and more.

Bart

Member

Registered: 19th Aug 02
Location: Midsomer Norton, Bristol Avon
User status: Offline

27th Oct 04 at 13:26

I have to find the partial fraction of:

1,
6X^2 + 8X + 16
(X+2).(X^2 +4)

2,
6X^2 + 8X +16
(X+2).(X+4)

Its the top line divided by bottom line. and obviously X is a letter and not mean to be Times.

Can Anyone help me?

Ditch

Member

Registered: 29th Nov 02
Location: St Albans Drives: JDM Celica GT4 WRC
User status: Offline

27th Oct 04 at 13:38

Nismo

Member

Registered: 12th Sep 02
User status: Offline

27th Oct 04 at 13:40

square route of 66

Bart

Member

Registered: 19th Aug 02
Location: Midsomer Norton, Bristol Avon
User status: Offline

27th Oct 04 at 14:04

c'mon, dont take the piss guys

can ya show the working out too

RichiesCorsa

Member

Registered: 15th Feb 04
Location: Rural Perthshire
User status: Offline

27th Oct 04 at 14:21

(6x^2+8x+16)/( (x+2).(x^2+4) ) = A/(x+2) + Bx+C/(x^2)

Cross Mulitply:

6x^2+8x+16= A(x^2+4) + (Bx+C)(x+2)

6x^2+8x+16= Ax^2 + 4A + Bx^2 + 2Bx + Cx + 2

Then equate coefficients to find A, B and C.

Then express in the original form, substituting what you got for A, B and C.

purple_corsa_gls

Member

Registered: 25th May 04
Location: Near Sunderland
User status: Offline

27th Oct 04 at 14:23

I was thnking the same, but didnt want to put myself in a position of embarassment if i was wrong

RichiesCorsa

Member

Registered: 15th Feb 04
Location: Rural Perthshire
User status: Offline

27th Oct 04 at 14:24

Bart

Member

Registered: 19th Aug 02
Location: Midsomer Norton, Bristol Avon
User status: Offline

27th Oct 04 at 14:28

quote:
Originally posted by RichiesCorsa

Then equate coefficients to find A, B and C.

Then express in the original form, substituting what you got for A, B and C.

umm.. and that means?

help lol
can you do it for me?

pweeease

Rob H

Member

Registered: 28th Oct 00
Location: Staffordshire Drives: Astra SRi
User status: Offline

27th Oct 04 at 14:28

(6x^2+8x+16)/( (x+2).(x^2+4) ) = A/(x+2) + Bx+C/(x^2+4)

Being pedantic

purple_corsa_gls

Member

Registered: 25th May 04
Location: Near Sunderland
User status: Offline

27th Oct 04 at 14:29

What ever happned to doing your own work, like when i was a lad?

Rob H

Member

Registered: 28th Oct 00
Location: Staffordshire Drives: Astra SRi
User status: Offline

27th Oct 04 at 14:30

quote:
Originally posted by Bart

quote:
Originally posted by RichiesCorsa

Then equate coefficients to find A, B and C.

Then express in the original form, substituting what you got for A, B and C.

umm.. and that means?
help lol
can you do it for me?

pweeease

FFS

.

What you doing to need to answer this anyway?

RichiesCorsa

Member

Registered: 15th Feb 04
Location: Rural Perthshire
User status: Offline

27th Oct 04 at 14:31

Ooops...ma bad

A=3.5 B=2.5 C=3

thats if I've done it right

Bart

Member

Registered: 19th Aug 02
Location: Midsomer Norton, Bristol Avon
User status: Offline

27th Oct 04 at 14:44

i guess all thats just for question 1?

RichiesCorsa

Member

Registered: 15th Feb 04
Location: Rural Perthshire
User status: Offline

27th Oct 04 at 14:50

Yeah. For Q2 do the same but use B instead of Bx+C.

Bart

Member

Registered: 19th Aug 02
Location: Midsomer Norton, Bristol Avon
User status: Offline

27th Oct 04 at 14:55

i wish i understood this

Dan B

Member

Registered: 25th Feb 01
User status: Offline

27th Oct 04 at 15:01

The answers I get (but it has been a LONG time):

Q1.

(3x+2)/(x^2+4) + 3/(x+2)

Q2.

12/(x+2) - 40/(x+4) + 6

chadjpr

Member

Registered: 27th Dec 02
Location: Chesterfield
User status: Offline

27th Oct 04 at 15:17

wheres barney when you need him?

Bart

Member

Registered: 19th Aug 02
Location: Midsomer Norton, Bristol Avon
User status: Offline

27th Oct 04 at 15:29

everyones answers seem to be slightly difference

Bart

Member

Registered: 19th Aug 02
Location: Midsomer Norton, Bristol Avon
User status: Offline

27th Oct 04 at 15:37

quote:
Originally posted by Dan B
The answers I get (but it has been a LONG time):

Q1.

(3x+2)/(x^2+4) + 3/(x+2)

Q2.

12/(x+2) - 40/(x+4) + 6

If only someone could elabourate exactly how he got to that

Bart

Member

Registered: 19th Aug 02
Location: Midsomer Norton, Bristol Avon
User status: Offline

27th Oct 04 at 16:22

kinda get it now, can anyone explain the second question?

Mikorsa16v

Member

Registered: 2nd Sep 02
Location: Burgess Hill, West Sussex
User status: Offline

27th Oct 04 at 17:33

you shouldnt be doing that subject fella, or get extra help! not being funny, but my algebra module at uni was fecking hard, went to the extra classes and it really did help

Bart

Member

Registered: 19th Aug 02
Location: Midsomer Norton, Bristol Avon
User status: Offline

28th Oct 04 at 06:21

quote:
Originally posted by Mikorsa16v
you shouldnt be doing that subject fella, or get extra help! not being funny, but my algebra module at uni was fecking hard, went to the extra classes and it really did help

Im not really doing maths on its own, im doing Mechatronics day release, and i have 2 hours of maths each day, as well as other subjects.

When i got home i realised i had already done the questions... but i got a slightly different answer i think.

New Topic

New Poll

Corsa Sport » Message Board » General Chat » FAO: Anyone whos good at maths?

23 database queries in 0.0205140 seconds