What is the discriminant of #2x^2 = 4x - 7# and what does that mean?
1 Answer
May 30, 2018
In the equation
Explanation:
By completing the square it is possible to see that the solutions of the equation:
are of the form:
So, to have solutions in the real numbers (as opposed to complex numbers), the square root
In summary, to have real solutions, the discriminant