To solve this problem you must apply the proccedure shown below:
1. You have the following quadratc equation given in thte problem above:
[tex]f(x) = x^2 + 5x + 5
[/tex]
2. To solve it, you must apply the quadratic formula, which is:
[tex]x=( -b+ \sqrt{ b^{2}-4ac }) \ /2a
[/tex]
3. When you substitute the values into the quadratic formula, you obtain that the answer is:
[tex]x1=( \sqrt{5} -5)/2 \\ x2=( -\sqrt{5} -5)/2[/tex]
