Question

Difficult....
\[\sqrt{-147}=\sqrt{-147\times3\times-1}\]\[\sqrt{?}\times \sqrt{3}\times \sqrt{?}\]\[two blank spaces \sqrt{3}\]

Help?

Answer 1

something wrong here

Answer 2

\[\sqrt{-147}=\sqrt{-147\times3\times-1}\] makes no sense

Answer 3

sqr(-147)=isqr(49*3)=sqr48*sqr38sqr(-1)=7isqr3

Answer 4

hmm where that negative 147 is under the square root with 3 was a blank space .

Answer 5

oh i see
you are supposed to recognize (how i don't know) that
\[147=49\times 3\]

Answer 6

so it should look like
\[\sqrt{-147}=\sqrt{49\times 3\times -1}\]

Answer 7

\[\sqrt{49}\times \sqrt{3}\times \sqrt{-1}=7 \sqrt{3}i\]