Question

Simplify:


i2√-80

Question 12 options:

-4i


-4i√5


4i√5


4i

Answer 1

@dtan5457 okay i want you to tell me if im doing it wrong . the first thing i do is find the reminder which is -1

Answer 2

that is i^2 right

Answer 3

then do i do -1 times the square root of 80?

Answer 4

is the square root inside 80 or -80 if it's -80 none of yo choices are right

Answer 5

its inside -80

Answer 6

well i find that hard to do cause -1 times -80 is just 80...so there shouldn't be a i in the answers

Answer 7

dang :( okay can we skip this question please i go to another one ? this is the last one

Answer 8

actually wait i can still solve this let me see

Answer 9

its -4i√5

leave the -1 on the outside.

the negative 80 inside you can go -16 times 5

the -16 is 4i times the -1 is -4i radical 5

Answer 10

@EuniceOB97

Answer 11

wow i never thought about that sir . i thought it wasnt possible to get a answer with a i

Answer 12

@dtan5457

Answer 13

word

Answer 14

but can you look at the other question that i tag you in please i want to see if the answer is correct sir ;)

Answer 15

alright no problem. feel free to pass a medal btw i love that stuff