Question

1. $f(x)=x^2 - 2x - 1$; find $f(2)$

Explanation:

Step1: Substitute $x=2$ into $f(x)$

$f(2) = 2^2 - 2(2) - 1$

Step2: Calculate each term

$f(2) = 4 - 4 - 1$

Step3: Simplify the expression

$f(2) = (4-4) - 1 = 0 - 1$

Answer:

$-1$