Question

subtract. write your answer in simplest form.
$-4\sqrt{10} - 4\sqrt{10}$

Explanation:

Step1: Identify like terms

Both terms have the radical $\sqrt{10}$, so they are like terms.

Step2: Combine coefficients

The coefficients are -4 and -4. Add them: $-4 - 4 = -8$.

Step3: Attach the radical

Multiply the combined coefficient by $\sqrt{10}$: $-8\sqrt{10}$.

Answer:

$-8\sqrt{10}$