SOLUTION: log3 (x^2 -3x-1)=0

Question 765552: log3 (x^2 -3x-1)=0
Answer by tommyt3rd(5050) (Show Source): You can put this solution on YOUR website!

a=1, b=-3, c=-2...

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=17 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 3.56155281280883, -0.56155281280883. Here's your graph:

:)

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