Question

determine whether the equations are quadratic or not a) x
$x { }^{2} + \frac{1}{x { }^{2} } + 1 = 0$
​

Answer 1

A rational equation involves rational terms, so it is not a polynomial. A quadratic equation does not include rational terms as it is a polynomial equation.

So, no, it is not a quadratic equation.

Answer 2

${ \blue{ \large{ \overbrace{ \underbrace{ \mid \: { \pink{ \bigstar} \: { \green{AnSwEr :}} \: { \pink{ \bigstar} \: \mid}}}}}}}$

It is not a quadratic equation.

$\large\bold \star \mathtt{ \fcolorbox{red}{pink}{why \: it \: is \: not \: a \: quadratic \: equation \: ?}}$

• A quadratic equation does not include rational terms as it is a polynomial equation!