pls answer fast I need urgently pls try to understand pl pls plz
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79, hope it will be helpful
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Answer:
Your answer is 79.
Step-by-step explanation:
we do squaring on both sides and by that we get:
(x+1÷x)² = (9)²
x² + 1÷x² + 2(x.1÷x) = 81
x² + 1÷x² = 81-2 => 79.
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