Answer:
-2√2: cannot be simplified
-3V8 : -3√8 = -3 √4*√2=-3*2*2√2=-6√2
(because √4 =√2*√2=2)
-√5: we can't simplify
-2√2-3√8-√5=-2√2-6√2-√5 =-8√2-√5
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