Question

Check my answers?? Medal?

Answer 1

o its not correct

Answer 2

ahh okay, could you explain it too me?

Answer 3

check ur multiplication it is wrong

Answer 4

(a+b)(c+d) = a(c+d) +b (c+d ) = ac+ad +bc +bd

Answer 5

similarly
(-5 +3i)(1-2i)= -5 +10i +3i -6i^2 = -5 +13i +6 = 1+13i

Answer 6

using the rule matricked posted, we know that

(-5+3i)(1-2i)

turns into

-5(1-2i) + 3i(1-2i)

from here distribute and remember that i^2 = -1

Answer 7

but one more thing here i^2 = -1
as i deontes complex root of unity

Answer 8

so you distribute? okay that makes better sense i got it.

Answer 9

you didn't distribute that negative fully through

Answer 10

try it again

Answer 11

Never-mind I got it. Thanks !

Answer 12

what did you get

Answer 13

Im not sure i already submitted the test but I got a 95 so its all good! Lol~

Answer 14

the one i got wrong is ...