Hey there! Sign in to join this conversationNew here? Join for free
x Turn on thread page Beta
    • Thread Starter
    Offline

    4
    ReputationRep:
    Hi

    I'm stuck on this: how do I factorize

    (3x - 2)2 - (4x +1)2

    (3x - 2)(3x - 2) - (4x + 1)(4x + 1)

    but then what?

    Thanks
    Offline

    15
    ReputationRep:
    Do you know about the difference of 2 squares?

    a^2-b^2=(a-b)(a+b).
    Offline

    19
    ReputationRep:
    (Original post by Jorge)
    Hi

    I'm stuck on this: how do I factorize

    (3x - 2)2 - (4x +1)2

    (3x - 2)(3x - 2) - (4x + 1)(4x + 1)

    but then what?

    Thanks
    expand, regroup and refactorize or factorize straight away as a difference of squares
    • Thread Starter
    Offline

    4
    ReputationRep:
    This is for my 14-year old daughter,

    I am not sure if you mean

    (3x-2-4x-1)(3x-2+4x+1)

    (-x-3)(7x-1)

    Is that it?

    UPDATE

    Yes it is! I've chcked assigning numbers to x

    many thanks. Over and out!

    Help!
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: January 8, 2015
Poll
Do you like carrot cake?
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.