Question

please give step by step explanation of this question ​

Answer 1

Yes,this equation is quadratic by the following method:

x^2+1/x^2=2

x^2+1/x^2-2=0

x^2-2+1/x^2=0

(x+1/x^2)^2=0.

So the highest power of the equation is 2 so it is quadratic.