Question

simplify the number using the imaginary unit i square root - 28

Answer 1

\[\sqrt{-28}=\sqrt{28}.\sqrt{-1}=\sqrt{4}\sqrt{7} (i)=2\sqrt{7}i\]

Answer 2

@MtMtx thanks!! but thats not a choice

Answer 3

it is. Its the last one

Answer 4

my answer is the same as the last one on your list\[2i \sqrt{7}\]

Answer 5

thanks!

Answer 6

hey @myko <3 ;) hehe

Answer 7

:)