SOLUTION: How can I find the quadratic equation if only one solution is provided? Thanks

Question 261507: How can I find the quadratic equation if only one solution is provided? Thanks
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
If the determinant is zero there is only one solution!
b^2-4ac=0
so
b^2=4ac
(x+1)^2=0
x^+2x+1=0
x=-1

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=0 is zero! That means that there is only one solution: .
Expression can be factored:

Again, the answer is: -1, -1. Here's your graph:

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