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# C3 help needed please watch

Announcements
1. Need help with Q14 A

Using product rule I got dy/dx= 3(x+1)^2(2x-1)^4 + 8(2x-1)^3(x+1)^3

Need help from here
Attached Images

2. (Original post by Vorsah)
Need help with Q14 A

Using product rule I got dy/dx= 3(x+1)^2(2x-1)^4 + 8(2x-1)^3(x+1)^3

Need help from here
dy/dx = v[du/dx] - u[dv/dx]
=[(2x-1)^4][3(x+1)^2][1] - [(x+1)^3][4(2x-1)^3][2]
=3[(x+1)^2][(2x-1)^4] - 8[(x+1)^3][(2x-1)^3]

Try factorising as (x+1)^2 is a common factor as well as (2x-1)^3
3. (Original post by krisshP)
dy/dx = v[du/dx] - u[dv/dx]
=[(2x-1)^4][3(x+1)^2][1] - [(x+1)^3][4(2x-1)^3][2]
=3[(x+1)^2][(2x-1)^4] - 8[(x+1)^3][(2x-1)^3]

Try factorising as (x+1)^2 is a common factor as well as (2x-1)^3
Thanks
4. (Original post by Vorsah)
Thanks
You should get this

Then you can just expand out the stuff in [......] and simplify

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The text passage is a discussion thread from a student forum, where a student is asking for help with a calculus problem, and another user is providing a solution.
no_question

the passage does not contain a mathematical question in the form of a word problem or calculation request. instead, it is a request for help with a calculus problem, and a response providing a solution. the calculus problem itself is not a standalone question but part of a larger educational context.
Given a text passage, determine:
    1. If it contains a mathematical question (including word problems or calculations)
    2. If an answer to that mathematical question is provided in the text

First, describe the content structure you found in 1-2 sentences.

Then provide your analysis in the following format:
TYPE: <one of the following values>
- NO_QUESTION
- SINGLE_QUESTION
- SINGLE_QUESTION_WITH_ANSWER
- MULTIPLE_QUESTIONS
- MULTIPLE_QUESTIONS_WITH_ANSWERS
system
You are Here: Home >< Maths

# C3 help needed please watch

Announcements
1. Need help with Q14 A

Using product rule I got dy/dx= 3(x+1)^2(2x-1)^4 + 8(2x-1)^3(x+1)^3

Need help from here
Attached Images

2. (Original post by Vorsah)
Need help with Q14 A

Using product rule I got dy/dx= 3(x+1)^2(2x-1)^4 + 8(2x-1)^3(x+1)^3

Need help from here
dy/dx = v[du/dx] - u[dv/dx]
=[(2x-1)^4][3(x+1)^2][1] - [(x+1)^3][4(2x-1)^3][2]
=3[(x+1)^2][(2x-1)^4] - 8[(x+1)^3][(2x-1)^3]

Try factorising as (x+1)^2 is a common factor as well as (2x-1)^3
3. (Original post by krisshP)
dy/dx = v[du/dx] - u[dv/dx]
=[(2x-1)^4][3(x+1)^2][1] - [(x+1)^3][4(2x-1)^3][2]
=3[(x+1)^2][(2x-1)^4] - 8[(x+1)^3][(2x-1)^3]

Try factorising as (x+1)^2 is a common factor as well as (2x-1)^3
Thanks
4. (Original post by Vorsah)
Thanks
You should get this

Then you can just expand out the stuff in [......] and simplify

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: October 13, 2013
Today on TSR

Choose Respect

### University open days

• Manchester Metropolitan University
Wed, 14 Nov '18
• University of Chester
Wed, 14 Nov '18
• Anglia Ruskin University
Ambitious, driven, developing your career & employability? Aspiring in your field, up-skilling after a career break? Then our Postgrad Open Evening is for you. Postgraduate
Wed, 14 Nov '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

## 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
user
The text passage is a discussion thread from a student forum, where a student is asking for help with a calculus problem, and another user is providing a solution.

TYPE: NO_QUESTION

The passage does not contain a mathematical question in the form of a word problem or calculation request. Instead, it is a request for help with a calculus problem, and a response providing a solution. The calculus problem itself is not a standalone question but part of a larger educational context.