Question

x = 4 + √15/2
find the value
6 (x² + 1 /x^2)​

Answer 1

Answer:

x = 4 - √15

x² = 16 + 15 - 8√15 = 31 - 8√15

1/x² = 1/31 - 8√15 = (31+8√15) / 961-960 = 31+8√15

x² + 1/x² = 62

Step-by-step explanation:

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Answer 2

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