Given that y = x^2 +2x + 3, find dy/dx.

We use a typical rule for polynomials in the form y = axb , where a and b are real numbers. Also, for a polynomial equation y = axb +cxd +.... , dy/dx = d( axb)/dx + d(cxd)/dx + ...With this information, we can differentiate y = x2 +2x + 3 :dy/dx = d(x2)/dx + d(2x)/dx + d(3)/dx = 2x1 + 2x0 + 0x-1 = 2x + 2.

JC
Answered by Jamie C. Maths tutor

5482 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

If y = 4x^3 - 6x^2 + 7 work out dy/dx for this expression


One important question type to be able to answer is integrating squared trig functions. like cos^2(x)


Find the differential of (cos2x)^2


Solve the differential equation dy/dx=(y^(1/2))*sin(x/2) to find y in terms of x.


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:

© 2025 by IXL Learning