Solve Using the Quadratic Formula x^2+5x+5=0

Problem

x2+5*x+5=0

Solution

1. Identify the coefficients a b and c from the quadratic equation in the form a*x2+b*x+c=0

a=1

b=5

c=5

2. State the quadratic formula used to find the roots of the equation.

x=(−b±√(,b2−4*a*c))/(2*a)

3. Substitute the values of a b and c into the formula.

x=(−5±√(,5−4*(1)*(5)))/(2*(1))

4. Simplify the expression inside the square root (the discriminant).

x=(−5±√(,25−20))/2

x=(−5±√(,5))/2

5. Separate the expression into the two possible solutions for x

x=(−5+√(,5))/2

x=(−5−√(,5))/2

Final Answer

x=(−5±√(,5))/2

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