Question

Please solve it fast. 50 point ​

Answer 1

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

Answer 2

Answer:

Photo attached above...

Step-by-step explanation:

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