Question

Which of the following is equivalent to the expression below?
-98

Answer 1

7i sqrt(2)

Explanation:

Answer 2

7i sqrt(2)

Explanation:

sqrt(-98)

We know that sqrt( ab) = sqrt(a) sqrt(b)

sqrt(-1) sqrt(98)

The sqrt (-1) = i

i sqrt(98)

i sqrt(49) sqrt(2)

i*7* sqrt(2)

7i sqrt(2)