Differentiate y = x(x+3)^4

 To differentiate this function we use the product rule. In the product rule we, leave the first alone, differentiate the second, and leave the second alone, differentiate the first.                                                                                                                  Say y = U * V (U and V are both functions of x)                                                                                                                      Then in general we have y' = U dV/dx + V dU/dx For this example we have; y' = x * d/dx (x+3)4 +  (x+3)4 d/dx x                      y' = x * 4 * (x+3)3 * 1 +  (x+3)4  * 1                                                                                                                                        When differentiating bracketed term we start differentiating outside the brackets and work our way in, therefore initially treating the brackets like a single term then accounting for the terms inside the brackets. To simplify the final expression we now take out the common factor.                                                                                                                                                       y' =  (x+3)3 [4x + (x+3)]                                                                                                                                                         Therefore, y' = (x+3)3 (5x+3)

HH
Answered by Harry H. Maths tutor

4048 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

A curve C with an equation y = sin(x)/e^(2x) , 0<x<pi has a stationary point at P. Find the coordinates ofP?


A circle with centre C has equation x^2+8x+y^2-12y=12. The points P and Q lie on the circle. The origin is the midpoint of the chord PQ. Show that PQ has length nsqrt(3) , where n is an integer.


Find the values of the constants a and b for which ax + b is a particular integral of the differential equation 2y' + 5y = 10x. Hence find the general solution of 2y' + 5y = 10x .


Find the location and nature of the turning point of the line y=-x^2+3x+2


We're here to help

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

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning