Answer:
f (8) = ( -161 )
Step-by-step explanation:
[tex]f(x)=-3x^{2} +3x+7[/tex]
To find f(8) sub 8 for x in the equation and simplify:
[tex]f(8)=-3(8^{2} )+3(8)+7[/tex]
= -192 + 24 + 7
= -168 + 7
= -161
so f(8) = -161