(adsbygoogle = window.adsbygoogle || []).push({}); Proof of Irrationality

How can I prove that the square root of 8 minus the square root of 3 is an irrational number using the fact that the square root of 3 is an irrational number? I know I need to use a proof by contradiction, but I am stuck after that.

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# Homework Help: Irrationality of Difference of two numbers

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