Return to Assignments Quadratic equations (abc-formula)
Assignment 8
For which value(s) of 
does the equation:
have two different solutions 
.
Solution
In order to find out whether a quadratic equation has two different solutions, one (or two coinciding) solution or no (real) solution at all, we have to look at the discriminant. In this case we have:
If the equation must have two different solutions the discriminant has to satisfy:
or:
