Question

Which of the following are quadratic equation in x? 

`x^2-2/x=x^2` 

 

Answer 1

`x^2-2/x=x^2` 

⇒` x^2+2=x^3`                   

⇒`x^3-x^2-2=0`     

`(x^3-x^2-2)`        is not a quadratic polynomial.
`∴x^3-x^2-2=0` is not a quadratic equation.