SOLUTION: here is the problem : Find the roots of the quadratic , equadratic equation 2timesXsquare plus 9x-8=0.using quadratic formula.

Question 235406: here is the problem : Find the roots of the quadratic , equadratic equation 2timesXsquare plus 9x-8=0.using quadratic formula.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Find the roots of the quadratic , equadratic equation 2timesXsquare plus 9x-8=0.using quadratic formula.
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Solved by pluggable solver: SOLVE quadratic equation with variable

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=145 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 0.760398644698074, -5.26039864469807. Here's your graph:

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