Turn on thread page Beta
    • Thread Starter
    Offline

    7
    ReputationRep:
    Can someone explain to me how I do this question please?
    • Thread Starter
    Offline

    7
    ReputationRep:
    Bump
    Posted on the TSR App. Download from Apple or Google Play
    Offline

    15
    ReputationRep:
    Take out a factor if (x+6)^3 first and then simplify
    • Thread Starter
    Offline

    7
    ReputationRep:
    (Original post by B_9710)
    Take out a factor if (x+6)^3 first and then simplify
    I don’t know what you mean? :/
    Posted on the TSR App. Download from Apple or Google Play
    • Community Assistant
    • Study Helper
    Offline

    20
    ReputationRep:
    Community Assistant
    Study Helper
    (Original post by NineOfDiamonds)
    I don’t know what you mean? :/
    Start with a simpler expression:

    y^4 +y^3z

    Can you factorise this? Then think about how this is similar to what you have.
    • Thread Starter
    Offline

    7
    ReputationRep:
    (Original post by Notnek)
    Start with a simpler expression:

    y^4 +y^3z

    Can you factorise this? Then think about how this is similar to what you have.
    Is it z(y³ + y⁴/z) ?
    Posted on the TSR App. Download from Apple or Google Play
    • Community Assistant
    • Study Helper
    Offline

    20
    ReputationRep:
    Community Assistant
    Study Helper
    (Original post by NineOfDiamonds)
    Is it z(y³ + y⁴/z) ?
    No the common factor here is y^3 so you need to take that outside the brackets.

    You need to be confident with this type of factorising before you’ll be able to understand the question in your original post.
    • Thread Starter
    Offline

    7
    ReputationRep:
    (Original post by Notnek)
    No the common factor here is y^3 so you need to take that outside the brackets.

    You need to be confident with this type of factorising before you’ll be able to understand the question in your original post.
    Oh right I understand
    Posted on the TSR App. Download from Apple or Google Play
    • Thread Starter
    Offline

    7
    ReputationRep:
    (Original post by Notnek)
    No the common factor here is y^3 so you need to take that outside the brackets.

    You need to be confident with this type of factorising before you’ll be able to understand the question in your original post.
    Ok so I’ve done,

    (x+6)^3 (1(x+6))(3x+4).

    Is this right? If so what do I do next?
    Posted on the TSR App. Download from Apple or Google Play
    Online

    11
    ReputationRep:
    (Original post by NineOfDiamonds)
    Ok so I’ve done,

    (x+6)^3 (1(x+6))(3x+4).

    Is this right? If so what do I do next?
    No, it's not right.

    Try the one Notnek posted.

    y^4 +y^3 z .

    What do you get?
    • Thread Starter
    Offline

    7
    ReputationRep:
    (Original post by BuryMathsTutor)
    No, it's not right.

    Try the one Notnek posted.

    y^4 +y^3 z .

    What do you get?
    y^3(y+z)
    Posted on the TSR App. Download from Apple or Google Play
    Online

    11
    ReputationRep:
    (Original post by NineOfDiamonds)
    y^3(y+z)
    Good. How is this like your original question?
    • Thread Starter
    Offline

    7
    ReputationRep:
    (Original post by BuryMathsTutor)
    Good. How is this like your original question?
    Because (x+6)^3 is the highest factor of the first two terms. Why can’t I factorise that out like I did?
    Posted on the TSR App. Download from Apple or Google Play
    Offline

    21
    ReputationRep:
    (Original post by NineOfDiamonds)
    Because (x+6)^3 is the highest factor of the first two terms. Why can’t I factorise that out like I did?
    You forgot the addition sign between (x+6) and (3x+4)
    Offline

    8
    ReputationRep:
    Is this higher tier maths? Or foundation?
    • Thread Starter
    Offline

    7
    ReputationRep:
    (Original post by MR1999)
    You forgot the addition sign between (x+6) and (3x+4)
    The addition signs are there?
    Posted on the TSR App. Download from Apple or Google Play
    • Thread Starter
    Offline

    7
    ReputationRep:
    (Original post by Maths_English)
    Is this higher tier maths? Or foundation?
    Higher tier FM
    Posted on the TSR App. Download from Apple or Google Play
    Offline

    21
    ReputationRep:
    (Original post by NineOfDiamonds)
    The addition signs are there?
    In any case, the next step would simply be to add the two terms and then you're done.
    Offline

    8
    ReputationRep:
    (Original post by NineOfDiamonds)
    Higher tier FM
    Makes sense, still building up to higher tier algebra at the moment, only just learned factorising and expanding so I tried to do this question with foundation tier knowledge.
    • Thread Starter
    Offline

    7
    ReputationRep:
    (Original post by MR1999)
    In any case, the next step would simply be to add the two terms and then you're done.
    Which 2 terms?
    Posted on the TSR App. Download from Apple or Google Play
 
 
 

1,818

students online now

800,000+

Exam discussions

Find your exam discussion here

Poll
Should predicted grades be removed from the uni application process
Useful resources

Make your revision easier

Maths

Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

Equations

How to use LaTex

Writing equations the easy way

Student revising

Study habits of A* students

Top tips from students who have already aced their exams

Study Planner

Create your own Study Planner

Never miss a deadline again

Polling station sign

Thinking about a maths degree?

Chat with other maths applicants

Can you help? Study help unanswered threads

Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.