Given that z = 6 is a root of the cubic equation z^3 − 10z^2 + 37z + p = 0, find the value of p and the other roots.

Okay, first, we will tackle this by using the information given to us (z=6) to solve for p. By substituting 6 wherever there is a z, we will end up with 216 - 360 + 222 + p = 0.Solving this through rearrangement leaves us with p = -78. Then, we can use the factor theorem. If z=6 is a root, then (z-6) is a factor, so then we can use factor division to find the other two factors, and thus, the remaining roots of the equation.

AW
Answered by Andrew W. Physics tutor

3395 Views

See similar Physics A Level tutors

Related Physics A Level answers

All answers ▸

How do stars form?


A ball is thrown in the air with velocity of 50.0 m/s, assuming no air resistance calculate its maximum height.


describe how a microwave oven works (EM waves + thermal physics)


What is the mathematical relationship between the frequencies of musical notes that we perceive identical, but at different octaves?


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