Question

encontre as raizes imaginarias da equação x2 + 2x + 2 = 0

Answer 1

x² + 2x + 2

Δ = 2² - 4.1.2
Δ = 4 - 8
Δ = -4

-2 +- √-4/2.1

√-4 => 2i
i = √-1

-2 + 2i /2 =>  x' =   -1 + i
x'' = -2 - 2i /2=> x'' = -1 - i