Question

Simplify: iÖ-98 - Ö98

Answer 1

What was that??
Ha ha ha..

Answer 2

Ö what is this?

Answer 3

i√-98 - √98

Answer 4

Square root symbol

Answer 5

√-98=i√98
use this

Answer 6

Use this also:

\[\sqrt{98} = 7\sqrt{2}\]

Answer 7

so it becomes:
i(i√98) -√98=-2√98=-14√2

Answer 8

remmember that i*i=-1