Simplify: \[-10sqrt(7)-9sqrt(2)-8sqrt(7)+7sqrt(2)\] Choose 1 answer: A \[-2sqrt(7)-16sqrt(2)\] B \[-18sqrt(7)-16sqrt(2)\] C \[-18sqrt(7)-2sqrt(2)\] D \[-2sqrt(7)-2sqrt(2)\] Related content

The terms with $\sqrt{7}$ are $-10\sqrt{7}$ and $-8\sqrt{7}$.
Combine their coefficients:
$-10\sqrt{7} - 8\sqrt{7} = (-10 - 8)\sqrt{7} = -18\sqrt{7}$

The terms with $\sqrt{2}$ are $-9\sqrt{2}$ and $+7\sqrt{2}$.
Combine their coefficients:
$-9\sqrt{2} + 7\sqrt{2} = (-9 + 7)\sqrt{2} = -2\sqrt{2}$

Add the results from Step 1 and Step 2:
$-18\sqrt{7} - 2\sqrt{2}$

Comparing this result with the given options, it matches option C.