SOLUTION: F(x)=x^2-8x-10

Question 752480: F(x)=x^2-8x-10
Answer by FrankM(1040) (Show Source): You can put this solution on YOUR website!
Using the quadratic solver:

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=104 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 9.09901951359278, -1.09901951359278. Here's your graph:

The key thing to note is the answer is not integers, it's two irrational numbers. So the equation cannot be factored.
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