Evaluate Using the Given Value f(21)=6(21+2)-3

$f (21) = 6 (21 + 2) - 3$

Step 1

Simplify each term.

Add $21$ and $2$ .

$f (21) = 6 \cdot 23 - 3$

Multiply $6$ by $23$ .

$f (21) = 138 - 3$

Step 2

Subtract $3$ from $138$ .

$f (21) = 135$