Question

Simplify the number using the imaginary unit i.
square root -28

Answer 1

\[\sqrt{-1}=i\]

Answer 2

\[\sqrt{-28}=\sqrt{-1}\sqrt{28}\] we know that \[i=\sqrt{-1}\]so no we have
\[i\sqrt{28}\]

can you simplify 28 (hint _ * 6)

Answer 3

take root of 28 and put sqrt-1=i

Answer 4

(_ * 7)

Answer 5

7 * 4 .. 4 is a perfect square