Calculus Examples

$s (t) = 3 t^{2} + 9 t$ , $t = 2$

Step 1

Replace the variable $t$ with $2$ in the expression.

$s (2) = 3 {(2)}^{2} + 9 (2)$

Step 2

Simplify the result.

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Step 2.1

Simplify each term.

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Step 2.1.1

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

$s (2) = 3 \cdot 4 + 9 (2)$

Step 2.1.2

Multiply $3$ by $4$ .

$s (2) = 12 + 9 (2)$

Step 2.1.3

Multiply $9$ by $2$ .

$s (2) = 12 + 18$

Step 2.2

Add $12$ and $18$ .

$s (2) = 30$

Step 2.3

The final answer is $30$ .

$30$

Step 3