Question: f ( x ) = x 2 7 x , find f ( a 3 ) , then simplify as much as possible. a 2

f(x)=x27x, find f(a3), then simplify as much as possible.
a213a27
a213a30
a29a12
a29a30
f ( x ) = x 2 7 x , find f ( a 3 ) , then

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