Evaluate 3*(-3^2)

$3 \cdot (- 3^{2})$

Multiply $3$ by $3^{2}$ by adding the exponents.

Move $3^{2}$ .

$3^{2} \cdot 3 \cdot - 1$

Multiply $3^{2}$ by $3$ .

Raise $3$ to the power of $1$ .

$3^{2} \cdot 3^{1} \cdot - 1$

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

$3^{2 + 1} \cdot - 1$

Add $2$ and $1$ .

$3^{3} \cdot - 1$

Raise $3$ to the power of $3$ .

$27 \cdot - 1$

Multiply $27$ by $- 1$ .

$- 27$