Answer:
1 option or last option are the best choices sorry if I'm wrong.
Answer:
this is just math jargon... a conjugate is the same numbers but with an opposite sign.. got it?
Step-by-step explanation:
z1' ( the prime is often used for conjuates it's also used in calculus but later)
Z1' =8-i
Hi!
1.)
a:A u B=

(The same elements are written once.)
b:A u C

c:B u C

Note:I used dots to mean commas .
Good work!
A).(x - 10) X (x - 4)
(4 - 10) X (4 - 4)
6 X 0 = 0