Solve the equation z2 + 2z + 2 = 0

Question

Solve the equation z² + 2z + 2 = 0

Please post steps so I can follow!

Thanks a bunch!!! 

Answer 1

z² + 2z + 2 = 0

 

Use the quadratic formula:

 

-(2/2) ± (1/2)√(2²-4*2*1)

 

-1 ± (1/2)√(-4)

 

-1 ± (1/2)√4√(-1)

 

-1 ± i