matrikahatwal1 matrikahatwal1

25-05-2022
Mathematics

contestada

If ' x - 1/x = 4, then x² + 1/x² =

Respuesta :

tanjimahmed2008 tanjimahmed2008

25-05-2022

Answer:

82/9

Step-by-step explanation:

x - 1/x = 4

x - 1 = 4x

-1 = 3x

- 1/3 = x

from there just substitute in x for x² + 1/x² to get:

82/9 or 9.1 recurring

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