Verified Answer :

You could solve this equation by referring to the quadratic equation
x=-5+/-√17/2

Answer:

\(x=\frac{-5+\sqrt{17}}{2}\) , \(x=\frac{-5-\sqrt{17}}{2}\)

Step-by-step explanation:

Find solution of \(x^2 + 5x = -2\)

To solve for x, we set the equation =0

Add 2 on both sides

\(x^2 + 5x +2=0\)

Now we use quadratic formula

\(x=\frac{-b+-\sqrt{b^2-4ac}}{2a}\)

The value of a=1, b=5 and c=2, plug in all the values

\(x=\frac{-5+-\sqrt{5^2-4(1)(2)}}{2(1)}\)

\(x=\frac{-5+-\sqrt{17}}{2}\)

We get two values for x

\(x=\frac{-5+\sqrt{17}}{2}\) , \(x=\frac{-5-\sqrt{17}}{2}\)