Question

incorrect
your answer is incorrect.
simplify.
$-3\sqrt{20} - \sqrt{80}$

Explanation:

Step1: Simplify each radical term

$\sqrt{20} = \sqrt{4 \times 5} = 2\sqrt{5}$, $\sqrt{80} = \sqrt{16 \times 5} = 4\sqrt{5}$

Step2: Substitute back into the expression

$-3 \times 2\sqrt{5} - 4\sqrt{5} = -6\sqrt{5} - 4\sqrt{5}$

Step3: Combine like radical terms

$-6\sqrt{5} - 4\sqrt{5} = (-6 - 4)\sqrt{5} = -10\sqrt{5}$

Answer:

$-10\sqrt{5}$