Question

discriminant to determine the nature of the roots of -2x2 - 5x - 2= 0

Answer 1

http://www.mathwarehouse.com/quadratic/discriminant-in-quadratic-equation.php




check this out ...

Answer 2

The quadratic equation's discriminant is given by \[b^2-4ac\] . Thus discriminant of the above equation \[2x^2+5x+2=0\] is 25-16 = 9. As \[9>0\] the equation has real and distinct roots..

Hope this solved your problem. Have a nice day!!

Answer 3

Good link, explains it well.