6√2 + 4 √32 try to get the same number "2" remaining under the root sign by finding what # times 2 gives 32 6√2 + 4√2×√16 since 16 is a perfect Square √16 gives 4 therefore. 6√2 + 4 ×4 √2 6√2 +16√2 these are Like terms so add them which would give u 22√2 hoped i helped, feel free to ask any question XOX