Question

find the value of X + 1÷X
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Answer 1

Answer:

±4

Step-by-step explanation:

x² + 1/x² = 14 ,    we need to find x + 1/x

x² + 1/x² + 2x(1/x) - 2x(1/x) = 14  ( since a² + b² = a² + b² + 2ab -2ab = (a+b)² - 2ab

(x + 1/x)² - 2 = 14

(x + 1/x)² = 16

x + 1/x = ±4