(2+√2)(2-√2)rational or irrational with soloution​

Question

(2+√2)(2-√2)rational or irrational
with soloution​

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Mackenzie 2 weeks 2021-11-15T08:23:04+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-11-15T08:24:26+00:00

    Answer:

    heya mate ☺

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

    So mate its rational.

    Hope it helps u mate ^.^

    0
    2021-11-15T08:24:53+00:00

    Answer:

    (2+root2 )(2-root2)

    4-2

    2 answer

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