You are Here: Home >< Maths

# Factorising? Eh? watch

1. Gah, I am so confused with factorising. I can do some of the basics but my workbook I have is totally annoying.

For example, one questions is factorise, 4x+6y

What I thought I did was 4(x+3y) but then I was like, wait that's not right because then that would mean 4 multiplied by 3y is 6y and it's not -.- Gah, sorry if I'm not explaning this right I'm just totally confused by the whole thing. But the answer in the end of this was 2(2x+3y). How do I get to this point please?

Could anyone give me some help on HOW to factorise. I've tried BBC Bitesize but they were using quadratic equations which have 3 parts to 'em not 2.

Also, could anyone help with the questions that do have 3 parts because BBC Bitesize did not help at all.

Thank youu
2. (Original post by RebeccaGraham)

Gah, I am so confused with factorising. I can do some of the basics but my workbook I have is totally annoying.

For example, one questions is factorise, 4x+6y

What I thought I did was 4(x+3y) but then I was like, wait that's not right because then that would mean 4 multiplied by 3y is 6y and it's not -.- Gah, sorry if I'm not explaning this right I'm just totally confused by the whole thing. But the answer in the end of this was 2(2x+3y). How do I get to this point please?

Could anyone give me some help on HOW to factorise. I've tried BBC Bitesize but they were using quadratic equations which have 3 parts to 'em not 2.

Also, could anyone help with the questions that do have 3 parts because BBC Bitesize did not help at all.

Thank youu
Common factor of 2? Try to pull the 2 out.
3. (Original post by RebeccaGraham)

Gah, I am so confused with factorising. I can do some of the basics but my workbook I have is totally annoying.

For example, one questions is factorise, 4x+6y

What I thought I did was 4(x+3y) but then I was like, wait that's not right because then that would mean 4 multiplied by 3y is 6y and it's not -.- Gah, sorry if I'm not explaning this right I'm just totally confused by the whole thing. But the answer in the end of this was 2(2x+3y). How do I get to this point please?

Could anyone give me some help on HOW to factorise. I've tried BBC Bitesize but they were using quadratic equations which have 3 parts to 'em not 2.

Also, could anyone help with the questions that do have 3 parts because BBC Bitesize did not help at all.

Thank youu
The only thing that goes into 4x and 6y is 2, so 4x+6y = 2(2x + 3y)
4. Take out the common factor first.

In most cases, such as 4x+3x, the common factor is x.

But the common factor in your question, is 2.

So take out the 2, put it outside the bracket: 2(2x + 3y). Multiply 2x and 3y by 2 and you get : 4x + 6y.

If the question was: 12x + 8y, the highest common factor (the highest number that goes into both of them) is 4.

So the answer would be 4(3x + 2y). Because 4x 3x = 12x and 4x 2y = 8y.
5. OMGOSH thank you so much.

It's been so long since I've done this and I completely forgot it all D:

<3 <3 You's are awesome !
6. (Original post by RebeccaGraham)
...
Rebecca, can you tell me what workbook you are using as factorising is only tested in Higher Tier exams and you are studying for Foundation?
7. (Original post by Mr M)
Rebecca, can you tell me what workbook you are using as factorising is only tested in Higher Tier exams and you are studying for Foundation?
Hi could you please empty some of your private messages? I get this error when trying to send a message: Mr M has exceeded their stored private messages quota and can not accept further messages until they clear some space.

Sorry for posting here- couldnt find another way.

Thanks
8. (Original post by lionking)
Hi could you please empty some of your private messages? I get this error when trying to send a message: Mr M has exceeded their stored private messages quota and can not accept further messages until they clear some space.

Sorry for posting here- couldnt find another way.

Thanks
Yup will do. This happens a lot to me. You would think I would learn!
9. (Original post by Mr M)
Rebecca, can you tell me what workbook you are using as factorising is only tested in Higher Tier exams and you are studying for Foundation?
Omg seriously?

I'm using the Collins Grade C Booster Workbook; New GCSE Maths Edexcel Modular.
I know I'm doing AQA but I'm only using it to see what I can and can't do so I know what to revise.
10. (Original post by RebeccaGraham)
Omg seriously?

I'm using the Collins Grade C Booster Workbook; New GCSE Maths Edexcel Modular.
I know I'm doing AQA but I'm only using it to see what I can and can't do so I know what to revise.
People who write these workbooks rush them out and don't always check them carefully against the specifications.

It doesn't matter that you are doing AQA and are using an Edexcel book as all GCSE mathematics tests the same content at either Tier.
11. (Original post by Mr M)
People who write these workbooks rush them out and don't always check them carefully against the specifications.

It doesn't matter that you are doing AQA and are using an Edexcel book as all GCSE mathematics tests the same content at either Tier.
Ahh. Well that's comforting news :L
What do you suggest I buy then ?

&& Ahh I see, that's okay then
12. (Original post by Extricated)
The quadratic formula does not appear on the Foundation GCSE exams either so is of no use to Rebecca.
13. (Original post by Mr M)
The quadratic formula does not appear on the Foundation GCSE exams either so is of no use to Rebecca.

### Related university courses

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: September 30, 2010
Today on TSR

### He lied about his age

Thought he was 19... really he's 14

### University open days

Wed, 25 Jul '18
2. University of Buckingham
Wed, 25 Jul '18
3. Bournemouth University
Wed, 1 Aug '18
Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams