Precalculus Examples

$w (n) = 4 n + 2$ ; Find $w (3 n)$

Step 1

Replace the variable $n$ with $3 n$ in the expression.

$w (3 n) = 4 (3 n) + 2$

Step 2

Simplify $4 (3 n) + 2$ .

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Step 2.1

Remove parentheses.

$4 (3 n) + 2$

Step 2.2

Multiply $3$ by $4$ .

$12 n + 2$