The discriminant tells us there are two roots when positive, one root when zero, and no roots when negative. b^2-4ac = (-8)^2-4*3*1 = 52 is positive, so there are two roots. The discriminant is just part of the quadratic equation. The quadratic equation gives us the exact real number roots of any equation in the form ax^2+bx+c=0. The quadratic equation is x = (-b \pm sqrt(b^2-4ac))/(2a), where \pm means that we have two values, one using + (addition) and one using - (subtraction). Let D = b^2-4ac.
RE: what is the difference between database and data w... Database is the place where the data is taken as a base and managed to get avialable fast and efficient access. Dataware house is the place where the application data is managed for analysis and reporting purposes.
Difference between client and server â¢ Client is a smaller computer through which the information or application stored on the server is accessed by the user whereas server is a powerful computer that stores the data files and applications. â¢ In some cases, the client may utilize the greater processing power of the server machine.