SOLUTION: Someone, please show me how to find the discriminant to determine the number of solutions of the quadratic equation, and whether the solutions are real or complex. The only thing

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Question 144440: Someone, please show me how to find the discriminant to determine the number of solutions of the quadratic equation, and whether the solutions are real or complex. The only thing i need to do is find the number and types of solutions.
(3)1/2y2 - 4y - 7(3)1/2 = 0. i would appreciate any help i can get. Thank you in aadvance.

Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
example:

Solved by pluggable solver: SOLVE quadratic equation (work shown, graph etc)
Quadratic equation (in our case ) has the following solutons:



For these solutions to exist, the discriminant should not be a negative number.

First, we need to compute the discriminant : .

Discriminant d=17 is greater than zero. That means that there are two solutions: .




Quadratic expression can be factored:

Again, the answer is: 0.56155281280883, -3.56155281280883. Here's your graph:

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