If $$\(f(x)=8 x^{2}-2\)$$, then which of the following is equal to $$\(f(4)\)$$ ?
A.
\(f(126)\)
B.
\(f(8)\)
C.
\(f(-2)\)
D.
\(f(-4)\)
Exam No：2020-2021 Math League First Round Grades 8-9 Year：2021 Question No：5
Answer:
D
Knowledge points:
G8-9 - Algebra - Functional Notation & Custom Operators
Solution:
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