Can someone please help me with this?
Given that the roots of the equation differ by two, find the possible values of the constant a?
I used the symmetry axis of the parabola to find one of the possible values =-2, but my teacher said, when we were checking this that 6 is also a possible answer. How is this possible? Is my method of solving this correct?
I solved for and I got 2 or -2, why is only -2 a possible solution?
I wonder how my teacher then said that also six was a possible answer?
I know this is probably a stupid question, and that I am breaking all internet etiquette rules by pleading for an answer, but I really need this since I have a test tomorrow.