Question

solve it please it's very urgent don't spam ​

Answer 1

Answer:

[x - 1/x]^2 = x^2 + 1/x^2 - 2.x.1/x

x^2 + 1/x^2 = [x-1/x]^2 + 2.x.1/x

x^2 + 1/x^2 = 81+2

x^2 + 1/x^2 = 83

Answer 2

Answer:

good morning...have a great day ahead...

Step-by-step explanation:

for u......