Question

Which of the following are quadratic equation in x? 

`x^2-3x-sqrtx+4=0`  

Answer 1

`(x^2-3x-sqrtx+4)` contains a term with sqrtx,i.e.,` x^(1/2),` Where `1/2`is not a ineger. 

Therefore, it is not a quadratic polynomial. 

`∴ x^2-3x-sqrtx+4=0` is not a quadratic equation.