Question

-
its zeros are 2 and -2.
[CBSE 2019]
19. Obtain all the zeros of the polynomial x4 + x3 - 14x2 - 2x + 24 if two of its zeros are ^2 and -^2​

Answer 1

Step-by-step explanation:

4x+x3-14x2-2x+24

if we taken x=2

then

(2)4+(2)3-14×2-2(2)+24

8+6-14×2-4+24

14-14×-8+24

0×16

=0

if x=-2

x4+x3-14×2-2x+24

(-2)4+(-2)3-14×2-2(-2)+24

-8+(_6)-14×2+4+24

-8-6-28+24

-14-28+24

-42+28