Use the Quadratic Formula to solve the quadratic equation En

Use the Quadratic Formula to solve the quadratic equation. (Enter your answers as a comma-separated list.) x^2 + 4x + 5 = 0 x =

Solution

given x^2+4x+5=0

quadratic formule is x = [ -b +/- sqrt(b^2-4ac) ]/2a

a = 1, b= 4 ,c = 5

x = [ - 4+/- sqrt(16-4*1*5) ]/2 = [- 4 +/- sqrt(-4) ]/2

x = - 2 - i and x = -2 + i