Question

x²+1/x²=2 is this a quadratic equation
ans fast I need urgently
don't spam or I will report​

Answer 1

Given :-

x² + 1/x² = 2

To Prove :-

It's a quadratic equation or not

Solution :-

$\sf \bigg(x^2+\dfrac{1}{x^2}\bigg)=2$

Multiply LHS by x²

$\sf \bigg(x^2+\dfrac{1}{x^2}\bigg)\times x^2=2$

$\sf \bigg(x^4+\dfrac{1}{x^2}\bigg)=2$

$\sf\dfrac{x^4+1}{x^2}=2$

$\sf x^4+1=2(x^2)$

$\sf x^4+1=2x^2$

$\sf 2x^2-x^4+1=0$

The standard form of quadratic equation

$\bf ax^2+bx+c=0$

But, the equation is not in the form of the quadratic equation. Hence, the given equation is not a quadratic equation

Answer 2

Answer:

ax² + bx + c = o

the equation is not valid because of their double square

therefore this is not a quadratic equation