SOLUTION: 2x^2+x-9=0

Question 781060: 2x^2+x-9=0
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
2x^2+x-9=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 : .

Discriminant d=73 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 1.88600093632938, -2.38600093632938. Here's your graph:

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