Question 403062


First you need to know that a {{{quadratic}}} equation is a polynomial equation of the {{{second}}}{{{ degree}}}. 

The general form is {{{y = ax^2+bx+c }}} (x^2 = x squared)

so if the equation has a squared term, it's a quadratic

in your case:

{{{ y=5x+x^2 }}} yes, it's a quadratic