Evaluate Using the Given Value Evaluate 4-2f when f=1

Evaluate $4 - 2 f$ when $f = 1$

Replace the variable $f$ with $1$ in the expression.

$e v a l u a t e \cdot 4 - 2 \cdot 1$

Simplify each term.

Multiply $a$ by $a$ by adding the exponents.

Move $a$ .

$e v (a \cdot a) l u t e \cdot 4 - 2 \cdot 1$

Multiply $a$ by $a$ .

$e v a^{2} l u t e \cdot 4 - 2 \cdot 1$

Multiply $e v a^{2} l u t e$ .

Raise $e$ to the power of $1$ .

$v a^{2} l u t (e^{1} e) \cdot 4 - 2 \cdot 1$

Raise $e$ to the power of $1$ .

$v a^{2} l u t (e^{1} e^{1}) \cdot 4 - 2 \cdot 1$

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$v a^{2} l u t e^{1 + 1} \cdot 4 - 2 \cdot 1$

Add $1$ and $1$ .

$v a^{2} l u t e^{2} \cdot 4 - 2 \cdot 1$

Move $4$ to the left of $v a^{2} l u t e^{2}$ .

$4 \cdot (v a^{2} l u t e^{2}) - 2 \cdot 1$

Multiply $- 2$ by $1$ .

$4 v a^{2} l u t e^{2} - 2$