Question

If z=2-3i them show that z²-4 z+13=0​

Answer 1

Answer:

ANSWER

Given,

z=(2−3i)

z

2

−4z+13

=(2−3i)

2

−4(2−3i)+13

=−5−12i−8+12i+13

=−12i+12i−5−8+13

=0