Polynomial Exam Question (1 Viewer)

[wiliaamnguuyen]

1. The cubic equation x^3 + ax^2 + bx + c = 0 has roots -(alpha), alpha, 1/alpha
(i) Show that ac = -1
(ii) Show that b + c^2 = 0

 

[DatAtarLyfe]

Tell me if you dont get it

 

[DatAtarLyfe]

In the first part, i did sum of roots and product of roots. In the second part, i did sum of roots taken two at a time