Need on 3 and 4 i’m really lost on them

1) Option c) is correct ie., 5 real and o non-real

2) Option b) is correct ie., (4, , , 2,2)

Step-by-step explanation:

Given polynomial function is

To find zeros equate f(x) to zero ie.,  

By synthetic division

     |   1     0    -3      0      -2

-1  |   0    -1      1      2      2

     |_________________

        1      -1      -2     2      0

Therefore x=-1 is a zero

      |  1    -1     -2    2

1      |  0     1     0     2

      |___________________

          1     0   -2   0

x=1 is the zero

and

Option c) is correct ie., 5 real and o non-real

2) Given polynomial function is

To find zeros equate f(x) to zero ie.,  

(or) or

Therefore x=4, of multiplicity of 2 and x=2 multiplicity of 2

Option b) is correct ie., (4, , , 2,2)

answer: the answer is 127 degrees