SOLUTION: I have been barely introduced to the quadratic formula and solving for equations using it and was just confused on how to solve for: (x+13)(x+5)=-2 using the quadratic formula. If

Question 776885: I have been barely introduced to the quadratic formula and solving for equations using it and was just confused on how to solve for: (x+13)(x+5)=-2 using the quadratic formula. If you could help me I would appreciate it :)
Answer by psbhowmick(878) (Show Source): You can put this solution on YOUR website!
First express the problem as a quadratic equation.

Now solve this quadratic equation as below.

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=56 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: -5.25834261322606, -12.7416573867739. Here's your graph:

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