Question

23 If x2 + 1/x2= 27, find the value of x -1/x​

Answer 1

Answer:

5 ✓✓✓✓✓

Step-by-step explanation:

x^2 + 1/x^2. = 27

-2 add both side

x^2 + 1/x^2 -2 = 27- 2

(x - 1/x)^2 = 25

( x - 1/x) = √25

x- 1/x = 5

hope it's helpful