Find dy/dx from the equation 2xy + 3x^2 = 4y

Firstly we must notice that we can differentiate each term separately.

Starting with the 2xy term, we must use the product rule as x and y are two variable that will differentiate. Setting u=2x and v=y and using (uv)'= uv' + vu' we get the term 2y+2xy'.

For the 3x^2 term, we can differentiate as usual to get 6x.

For the 4y term, we can simply differentiate to get 4y'.

Putting this all together we get: 2y+2xy'+6x=4y'.

Finally, rearranging gives dy/dx=(3x+y)/(2-x)

Answered by Murray M. Maths tutor

3501 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

A cubic curve has equation y x3 3x2 1. (i) Use calculus to find the coordinates of the turning points on this curve. Determine the nature of these turning points.


Prove by contradiction that sqrt(3) is irrational. (5 marks)


Does the equation: x^2+5x-6 have two real roots? If so what are they?


What is a Binomial distribution and when, in an exam, should I use it?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2024

Terms & Conditions|Privacy Policy
Cookie Preferences