A nice olympiad maths question | \sqrt{\sqrt{9} - \sqrt{8}} | You need to know this trick | Algebra

See the way I breakdown the solution of this question. There is a lot you can learn from this video.
How to solve \sqrt{\sqrt{9} - \sqrt{8}}
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[@Uy11204]

This is an excellent method I really appreciate you

[@SpencersAcademy]

I am glad to hear that. 😊

[@roger7341]

a+b√2=√(3-2√2) a^2+2b^2+2ab√2=3-2√2 yields a^2+2b^2=3 and ab=-1. By inspection a=-1 and b=1. Thus, √(√9-√8)=√(3-2√2)=√2-1

[@SpencersAcademy]

That's an excellent delivery. I must say I'm impressed.