Differentiate 3x^(3) + 7x^(2) -4x

Using the formula for differentiation: if y=axN then dy/dx= Na*xN-1 apply this to each term in the equation given; first term: dy/dx= 9x2second term: dy/dx= 14xthird term: dy/dx= - 4Combining all three this gives: dy/dx= 9x2 + 14x - 4

MW
Answered by Michelle W. Maths tutor

3260 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

How to differentiate using the chain rule


What is a parametric equation?


Find the values of x for which f(x) is an increasing function given that f(x)=8x-2x^2


1. A small stone is dropped from a height of 25 meters above the ground. i) Find the time taken for the stone to reach the ground ii) Find the speed of the stone as it reaches the ground


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences