Question

Simplify the expression sqrt -9/ (3-2i)+(1+5i)

Answer 1

first combine like terms

Answer 2

\[\huge\rm \frac{ \sqrt{-9} }{ 3-2i+1+5i }\]

Answer 3

12-9i/25
12-9i/7
9+12i/25
9+12i/7

Answer 4

and yes

Answer 5

square root of 9 over 4 plus 3i?

Answer 6

-9*

Answer 7

alright and you separate -9
\[\sqrt{-1} \times \sqrt{9}\]
and i =what ?

Answer 8

yep right

Answer 9

i = imaginary number? or -1

Answer 10

i imaginary

Answer 11

general question

Answer 12

ok

Answer 13

\[\bf i = \sqrt{-1}\]
\[\bf i^2 = -1\]
and that's why we have to seprate of negative one and positive 9

Answer 14

ok

Answer 15

\[\huge\rm \frac{ \sqrt{-1} \times \sqrt{9} }{ 4-3i }\]
so replace sqrt -1 by 1 and multiply both the denominator and the numerator by the conjugate of 4-3i

Answer 16

-9/25+12i/25?

Answer 17

nope how did you get 25

Answer 18

just guessed

Answer 19

why did you guess ?

Answer 20

you are not 'n the exam haall
this is the time to learn not to guess :=)

Answer 21

Honestly I have no idea how to do this and not trying to be rude but i need the answer because i am taking a timed exam.......

Answer 22

really so it's a test question ..sorryy..

Answer 23

yes

Answer 24

do you know we are not allowed to help u on your test or quiz? it's against the coc

Answer 25

I know but i really dont understand this and i have also seen alot of people do the same thing as me

Answer 26

well..if someone don't aa bad thing then.. you don't have to follow them
you will do better without cheating..

Answer 27

ok, thanks for the help anway

Answer 28

what is square root of 9?
replace square root of -1 by i
multiply by the conjugate 4-3i
if you don't know what conjugate then search it