Evaluate 5*(3+6)^2-6^2

$5 \cdot {(3 + 6)}^{2} - 6^{2}$

Simplify each term.

Add $3$ and $6$ .

$5 \cdot 9^{2} - 6^{2}$

Raise $9$ to the power of $2$ .

$5 \cdot 81 - 6^{2}$

Multiply $5$ by $81$ .

$405 - 6^{2}$

Raise $6$ to the power of $2$ .

$405 - 1 \cdot 36$

Multiply $- 1$ by $36$ .

$405 - 36$

$405 - 36$

Subtract $36$ from $405$ .

$369$

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