Question

Resolva a equação de números complexos: X (ao quadrado) - 8x +20 = 0

Answer 1

$x^2-8x+20=0\\\\ \Delta=64-80\\\\ \Delta=-16\\\\ x''=\frac{8+4i}{2}=4+2i\\\\ x''=\frac{8-4i}{2}=4-2i\\\\ \boxed{S(4+2i,4-2i)}$