Question

Simplify:

i(sqrt-98) -( sqrt98)

Answer 1

\[i\sqrt{-98}-\sqrt{98}\]?

Answer 2

yes

Answer 3

-2sqrt(98)

Answer 4

\[\sqrt{-98}=\sqrt{98}i\] giving
\[i^2\sqrt{98}-\sqrt{98}=-\sqrt{98}-\sqrt{98}=-2\sqrt{98}\]

Answer 5

not done yet however!

Answer 6

11i

Answer 7

\[98=2\times 49\] so
\[\sqrt{98}=7\sqrt{2}\]

Answer 8

therefore you "final answer is
\[-14\sqrt{2}\]

Answer 9

11i?