Turn on thread page Beta
    • Thread Starter
    Offline

    7
    ReputationRep:
    f(x) = 2x^2 - x^2 + ax + b, where a and b are constants. it is given that (x-2) is a factor of f(x). when f(x) is divided by(x-1)the remainder is 6. find the value of a and b
    • Community Assistant
    Offline

    21
    ReputationRep:
    Community Assistant
    (Original post by Nat6351)
    f(x) = 2x^2 - x^2 + ax + b, where a and b are constants. it is given that (x-2) is a factor of f(x). when f(x) is divided by(x-1)the remainder is 6. find the value of a and b
    Your working/thoughts? This isn't a we'll-do-your-homework service.
    Offline

    7
    ReputationRep:
    (Original post by Nat6351)
    f(x) = 2x^2 - x^2 + ax + b, where a and b are constants. it is given that (x-2) is a factor of f(x). when f(x) is divided by(x-1)the remainder is 6. find the value of a and b
    (Do you mean 2x^3?) You need to substitute in the appropriate values into the equation. This will leave you with simultaneous equations in a and b that you can solve.
    • Thread Starter
    Offline

    7
    ReputationRep:
    (Original post by JemmaSimmons)
    (Do you mean 2x^3?) You need to substitute in the appropriate values into the equation. This will leave you with simultaneous equations in a and b that you can solve.
    thank you I think I get what you mean
    Offline

    15
    ReputationRep:
    (Original post by Nat6351)
    f(x) = 2x^2 - x^2 + ax + b, where a and b are constants. it is given that (x-2) is a factor of f(x). when f(x) is divided by(x-1)the remainder is 6. find the value of a and b
    f(x)=2x^2 -x^2 +ax+b

    (Original post by Blue_Cow)
    Your working/thoughts? This isn't a we'll-do-your-homework service.

    (Original post by JemmaSimmons)
    (Do you mean 2x^3?) You need to substitute in the appropriate values into the equation. This will leave you with simultaneous equations in a and b that you can solve.
    f(x)=2x^3 -x^2 +ax+b
    Offline

    7
    ReputationRep:
    (Original post by Nat6351)
    thank you I think I get what you mean
    It sounds like a mean question but once you set up the simultaneous equations using your knowledge of factor theorem, it will flow nicely.
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: November 11, 2017

University open days

  1. University of Bradford
    University-wide Postgraduate
    Wed, 25 Jul '18
  2. University of Buckingham
    Psychology Taster Tutorial Undergraduate
    Wed, 25 Jul '18
  3. Bournemouth University
    Clearing Campus Visit Undergraduate
    Wed, 1 Aug '18
Poll
How are you feeling in the run-up to Results Day 2018?
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.