Question

please answer this if you don't know then don't say that you don't know please be fast ​

Answer 1

Answer:

x³ + 1/x³  = 110

(x + 1/x)³ - 3(x + 1/x) = 110

x + 1/x = k let

k³ - 3k - 110 = 0  

k(k² - 3) = 110  

k(k² - 3) = 5(5² - 3)

so k = 5 ANSWER

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