Question

I just want to make sure, is radical -40 = 2i radical 10?

Answer 1

\[\sqrt{-40} = \sqrt{-1 * 40}\]

Answer 2

\[\sqrt{-1}\sqrt{4 * 10} = i*\sqrt{4}\sqrt{10} = 2i \sqrt{10}\]

Answer 3

yep you are righ

Answer 4

Answer to your question: Yes, you are correct.

Answer 5

thank you