SOLUTION: 5x2 + 8x + 2 = 0

Question 188146: 5x2 + 8x + 2 = 0

Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
5x2 + 8x + 2 = 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=24 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: -0.310102051443364, -1.28989794855664. Here's your graph:

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