Hi guys,

I have an assignment of Quadratic Expression and my professor wants me to have these methods:

get() and set() for three variables

add(QuadraticExpression) : QuadraticExpression

substract(QuadraticExpression) : QuadraticExpression

getRootOne() : double

getRootTwo() : double

toString() : String

getNumRealRoots() : int

I know how to do all of them except getNumRealRoots() : int

What is this method for? I need help for the logic..

Thanks..:)