Respuesta :

Step-by-step explanation:

f(x)=2(x)^2-2(x)

x=2 and x=6

substitute

=2(2)^2-2(2)

=2(16)-2(2)

=32-4

=18

2(6)^2-2(6)

=2(36)-2(6)

=72-12

=60

TO FIND THE AVERAGE,

60+18/2

=39