F(x) = 2x4 + 6x3- 4x - 1

Step-by-step explanation:

f(x)= 2x4+6x3-4x-1

2 times 4 =8

6 times 3 =18

f(x)=8+18-4x-1

8 plus 18=26

f(x)=26-4x-1

26 minus 1

f(x)=27-4x

f(x)= -6.75

Don't think this rightbut hope that helps

third option: 6x+8

step-by-step explanation:

we can see that the given question is a sum of series and the values of n vary from 0 to 3

the first term will be:

when n=0, [(0)*x+2] => (0+2) => 2

when n=1, [(1)*x+2] => (x+2) => x+2

when n=2, [(2)*x+2] => 2x+2

when n=4, [(3)*x+2] => 3x+2

so adding up all the terms will give us:

=2+x+2+2x+2+3x+2

=x+2x+3x+2+2+2+2

=6x+8

so,

third option is the correct answer ..

entering that problem on the tube might get you an answer