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$3 \sqrt{2} + 5 \sqrt{2} - 2 \sqrt{2} - 9$
$3 \sqrt{2} + 5 \sqrt{2} - 2 \sqrt{2} - 9 = ◻$
(Type an exact answer, using radicals as neęded.)

Answer

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Answer

So, the solution is $6 \sqrt{2} - 9$

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 $6 \sqrt{2} - 9$