Show that (x-2) is a factor of 3x^3 -8x^2 +3x+2

The factor theorem states that a polynomial f(x) has a factor (x-k) if and only if f(k)=0. 
f(2) = 3(2)^3 - 8(2)^2 + 3(2) + 2 = 3(8) - 8(4) + 6 + 2 = 24 - 32 + 8 = 0.
==> (x-2) is a factor.

SO
Answered by Samantha O. Maths tutor

5796 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Express (3+ i)(1 + 2i) as a complex number in the form a+bi where a and b are real numbers.


What is the integral of 2x^5 - 1/4x^3 - 5


Solve the equation cos2x - 5cosx = 2


Using the binomial theorem, find the coefficient of x^4*y^5 in (x-2y)^9.


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