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

3602 Views

See similar Physics A Level tutors

Related Physics A Level answers

All answers ▸

What is the angular speed of a car wheel of diameter 0.400m when the speed of the car is 108km/h?


Explain why a transformer only works with an alternating current and doesn't with a direct current.


Explain quantitatively how an object can follow circular motion whilst on a ramp with no friction in the radial direction.


Describe one technique you could use to measure the threshold voltage for LEDs.


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