Question

x²+1/x²=5
find this is it are quadratic equation?​

Answer 1

This is a quadratic equation

coz, the multiplicity of x is 2.

x^2+1 /x^2 =5

x^2+1 =5x^2

x^2+1 -5x^2 =0

-4x^2+1=0

4x^2 =1

x^2 =1/4

x = √1/4

x=1/2 or x= -1/2