roots/polynomial question!! (1 Viewer)

[hendo144]

hi guys i need help with this question:

Two roots of the equation 2x^3 - x^2 + kx + 4 = 0

1) prove that x=1/2 is a zero for the above polynomial.


2) find the other two zeros


thank you in advance!

 

[cutemouse]

I think the questions is wrong. Where's it from?

 

[hendo144]

my half yearly school paper last year

 

[cutemouse]

Are you sure that you didn't type the equation wrong?

 

[xV1P3R]

The question doesn't seem to make sense unless 1) isn't a question, but a condition to the question.

Maybe it should read:

Given the equation 2x^3  - x^2  +  kx + 4 = 0
 
if x=1/2 is a zero for the above polynomial, find the other two zeros