Answer :

Answer:

27

Step-by-step explanation:

To evaluate f(8) substitute x = 8 into f(x)

f(8) = [tex]\frac{1}{2}[/tex] × 8² - ([tex]\frac{1}{4}[/tex] × 8 + 3)

     = [tex]\frac{1}{2}[/tex] × 64 - (2 + 3)

     = 32 - 5

     = 27

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