SOLUTION: I need to find the quadractic equation for 5 and 28

Question 171760: I need to find the quadractic equation for 5 and 28
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
I need to find the quadractic equation for 5 and 28
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x = 5 or x = 28
x-5 = 0
x -28 = 0
(x-5)*(x-28) = 0

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Not necessary, but a check:

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=529 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 28, 5. Here's your graph:

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