Evaluate Using the Given Value f(2)=2^2-4*2-5

$f (2) = 2^{2} - 4 \cdot 2 - 5$

Step 1

Simplify each term.

Raise $2$ to the power of $2$ .

$f (2) = 4 - 4 \cdot 2 - 5$

Multiply $- 4$ by $2$ .

$f (2) = 4 - 8 - 5$

Step 2

Simplify by subtracting numbers.

Subtract $8$ from $4$ .

$f (2) = - 4 - 5$

Subtract $5$ from $- 4$ .

$f (2) = - 9$