SOLUTION: solve for x. x^2+18x+4=0

Question 342463: solve for x. x^2+18x+4=0
Answer by vleith(2983) (Show Source): You can put this solution on YOUR website!

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=308 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: -0.225035612607877, -17.7749643873921. Here's your graph:

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