Question 1146210
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I doubt you have displayed the equation correctly....<br>
(1) On the left, is it {{{(1-sqrt(2))2}}} or {{{(1-sqrt(2))^2}}}?
(2) On the right, do you really mean {{{2-2-sqrt(2)}}} (which simplifies to {{{-sqrt(2)}}}), or should it be {{{2-2*sqrt(2)}}}?<br>
If you are serious about wanting help with your questions, take the time to present the question clearly and correctly.<br>
Note that it is standard to use "^" (shift-6) to denote exponentiation -- e.g., (1-√2)^2 instead of (1-√2)2.