SOLUTION: w�-9w+7 I just seem to be stuck on this one its questions 19 of 20 and of course it had to trip me up

Question 195287: w�-9w+7
I just seem to be stuck on this one its questions 19 of 20 and of course it had to trip me up
Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
you dont have instructions on this so I will treat it like a quadratic equation
:

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=53 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 8.14005494464026, 0.859945055359741. Here's your graph:

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