Question

braket 2+root2 braket 2-root 2
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Answer 1

sorry i a have no answer

Answer 2

Answer:

$(2 + \sqrt{2} )2 - \sqrt{2} \\ = 2(2 - \sqrt{2}) + \sqrt{2} (2 - \sqrt{2} ) \\ = 4 - 2 \sqrt{2} + 2 \sqrt{2} - 2 \\ = 4 - 2 \\ = 2$

i think it is right