Question

f (x – 1) and (x + 2) are two factors of the polynomial 2x3 + mx2 – x – n, then the value of
(m2 – n2) is

Answer 1

Answer:

f(1)=0

m+n = 12

f(-2) = 0

2m-n = 15

m= 9 ; n= 3

m/n = 3

i hope you understand.........!