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)

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )

the radius is 2 times the diameter.

step-by-step explanation: