Which of the following are possible rational roots of the polynomial function

The correct options are:

          A.  

          B.  

          D.  

Rational Root theorem--

For any polynomial function of the type:

where are integers.

The rational roots are of type p/q where p is the factor of and q is the factor of

Here p is a factor of 7.

i.e.p could take value 1,-1, 7 and -7.

and q is a factor of 2.

i.e. q could take value 1,-1,2 and -2.

The possible rational roots are given by:

ummm seems that u didnt post the attachement !