Question

If one of the roots of the quadraticequationx2+x+k=0,then what is value of k

Answer 1

Let the other root be y

therefore two roots will be 9 and y

as the roots sum should be equal to - b/a

therefore 9 + y= -(-11)/1

therefore y = 2

and also the product of roots is equal to c/a

therefore (9)(2) =

Answer 2

firstly you tell me the one root of this quadratic equation

because in question one root is not mention, but you say in question that "one root of quadratic equation....... .."