Question

se f(x)=3x²-3x-3 então quanto vale f(2)?

Answer 1

$3 x^{2} -3x-3 \\ \\ 3. 2^{2} -3.2-3 \\ \\ 3.4-6-3 \\ \\ 12-6-3 \\ \\ 3$

Answer 2

f(x)=3x²-3x-3=
f(2)=3.2²-3.2-3=
12-6-3=
12-9= 3