Add or subtract as indicated.
\[
3 \sqrt{2}+5 \sqrt{2}-2 \sqrt{2}-9
\]
\[
3 \sqrt{2}+5 \sqrt{2}-2 \sqrt{2}-9=\square
\]
(Type an exact answer, using radicals as neęded.)

Answer

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Answer

So, the solution is \(\boxed{6 \sqrt{2}-9}\)

Steps

Step 1 ：The given expression is: \(3 \sqrt{2}+5 \sqrt{2}-2 \sqrt{2}-9\)

Step 2 ：We can combine like terms: \[(3 \sqrt{2}+5 \sqrt{2}-2 \sqrt{2})-9\]

Step 3 ：This simplifies to: \[6 \sqrt{2}-9\]

Step 4 ：So, the solution is \(\boxed{6 \sqrt{2}-9}\)