OpenStudy (anonymous):

Use the discriminant to determine whether the following equations have solutions that are: two different rational solutions; two different irrational solutions; exactly one rational solution; or two different imaginary solutions. 2x2 + 6x – 7 = 0

6 years ago
OpenStudy (anonymous):

The discriminant of a quadratic equation is b^2 - 4ac, where the quadratic is ax^2 + bx + c = 0. If the discriminant is positive, there are two rational solutions, If the discriminant is zero, we get one rational solution, and a negative discriminant means two imaginary solutions.

6 years ago