Question

Evaluate /:

Answer 1

−3√-8

Answer 2

I got −1√-2 for my answer

Answer 3

Do you know what \[\sqrt{-1} \] is?

Answer 4

Umm. no

Answer 5

it's squred root

Answer 6

\[\sqrt{-1}=i\]
where i is THE imaginary number... have you covered complex numbers at all?

Answer 7

mm

Answer 8

ofc i did.

Answer 9

Okay... then notice that
\[-3\sqrt{-8}=-3\sqrt{8}\sqrt{-1}\]

Answer 10

@Bobo-i-bo Is that ^^^ the final answer?

Answer 11

No, i wouldn't give you the final answer :P

Answer 12

But i'm trying to help you, lol

Answer 13

I said my final answer already Hm._.

Answer 14

This will help you out: http://www.mathwords.com/s/square_root_rules.htm

Answer 15

btw i'd like a person to explain me not this sites /;

Answer 16

@Bobo-i-bo so that was your final answer -6i√2

Answer 17

yes

Answer 18

welp that doesn't not really looks liek the right asnwer :#

Answer 19

What about the explanation now that the assumed correct answer is known.

@Bobo-i-bo

Answer 20

#rekt

Answer 21

\[-3\sqrt{-8}=-3\sqrt{8}\sqrt{-1}=-3\sqrt{4}\sqrt{2}i=-3*2\sqrt{2}i=-6\sqrt{2}i\]

Answer 22

Understand it all?

Answer 23

It follows from the property that, given numbers a and b, \[\sqrt{ab}=\sqrt{a}\sqrt{b}\]

Answer 24

well i got the difrent answer /:

Answer 25

and how did you get your answer? please may i see working?

Answer 26

I cannot solve this since it's undetifined