Question

Help with Algebra 2. Question attached.

Answer 1

hi! do you know how to do this?

Answer 2

ok, replace x = 1-i to any where you see x. what do you get

Answer 3

i got 1+i over 4-i

is that what you got?

Answer 4

numerator must be 2 +i , right? check

Answer 5

hurry up. I don't have time, try to help you

Answer 6

okay that is what i got. so the answer is 2+i over 4-i

can that be simplified?

Answer 7

ok. time both (numerator and denominator) by 4+i , and so trivial to get answer

Answer 8

okay. what did you get?

Answer 9

up = (2 +i ) ( 4 +i) = 7 + 6i
down = (4-i) (4 +i) = 17

Answer 10

i got 9+2i over 15-8i

Answer 11

hey, what kind of expanding you have?

Answer 12

8-2i+4i+1 over 16-4i-4i-1

Answer 13

down first: (4 + i ) ( 4 -i) = 4^2 - i^2= 16 - (-1) = 17

Answer 14

now up: (2 +i) (4 + i) = 8 +2i + 4i + i^2 = 8 + 6i + (-1) = 7 + 6i

Answer 15

combine them as I did above
kapeesh?

Answer 16

yup! thank you!! :)

Answer 17

what do you mean?

Answer 18

your brother must go now. hurry up if you want to say something

Answer 19

okay in (4 + i ) ( 4 -i) what is one plus and one minus

Answer 20

dont' understand, say it again, i is complex number.

Answer 21

ok, got it.

Answer 22

oh okay i get it so the answer is 7+6i over 7

Answer 23

apply exactly the formula (a+b)(a-b)

Answer 24

over 17! how careless you are, guy?

Answer 25

hahah sorry!

Answer 26

kapeesh??

Answer 27

yea! thanks bro!

Answer 28

ok bye now

Answer 29

bye