(2+root2)(2-root2) is rational or irrational if you don't know please don't answer others wise i will report the answer it's very important i need with sum
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(2+root2)(2-root2) is rational or irrational if you don't know please don't answer others wise i will report the answer it's very important i need with sum
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Answer:
[tex](2 + \sqrt{2} )(2 - \sqrt{2}) \\ = {2}^{2} - { \sqrt{2} }^{2} \\ = 4 - 2 = 2[/tex]
Step-by-step explanation:
2 is completely rational.
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