SOLUTION: Solve by the quadratic formula: 5x^2 + 3x = -6

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Question 384612: Solve by the quadratic formula: 5x^2 + 3x = -6
Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
Solve by the quadratic formula: 5x^2 + 3x = -6
5x^2 + 3x + 6 = 0
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 : .

The discriminant -111 is less than zero. That means that there are no solutions among real numbers.

If you are a student of advanced school algebra and are aware about imaginary numbers, read on.


In the field of imaginary numbers, the square root of -111 is + or - .

The solution is , or
Here's your graph:


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