Question

Simplify:


i√-45



Question 1 options:

-3i√5


3i√5


-3√5


3√5

Answer 1

@dtan5457

Answer 2

@dtan5457 look at this one please

Answer 3

hint:

\[\Large \sqrt{-45} = \sqrt{-1*9*5}\]

notice how I pulled out the -1 and I also pulled out a perfect square factor (9)

Answer 4

yeah. just solve that ^

Answer 5

just solve square root of -1 x 9x 5?

Answer 6

@dtan5457

Answer 7

? im lost

Answer 8

3i√5

-1 times 9 is -3 which can made 3i in the front. then you got the remaining radical 5

Answer 9

wow you are so smart . god bless you