Evaluate 2( square root of 80/5-5)

$2 (\sqrt{\frac{80}{5}} - 5)$

Simplify each term.

Divide $80$ by $5$ .

$2 (\sqrt{16} - 5)$

Rewrite $16$ as $4^{2}$ .

$2 (\sqrt{4^{2}} - 5)$

Pull terms out from under the radical, assuming positive real numbers.

$2 (4 - 5)$

Simplify the expression.

Subtract $5$ from $4$ .

$2 \cdot - 1$

Multiply $2$ by $- 1$ .

$- 2$