Answer:
Yes, it is a quadratic equation.
Step-by-step explanation:
Let's solve it to make it a quadratic equation:
=> [tex]\frac{x^2+1}{x^2} =5[/tex]
=> x²+1 = 5x²
=> 5x²-x²-1 = 0
=> 4x²-1 = 0
Comparing it with the standard form of quadratic equation i.e.
[tex]ax^2+bx+c = 0[/tex]
So, we get
a = 4 , b = 0 and c = -1
So, yes. It is a quadratic equation and it is a pure quadratic equation since b is equal to 0.
