Question

Simplify the expression. Write your answer as a complex number

2V25+ V-16
10+4i
10-4i
10 + 8i
10-3i

Answer 1

`2√(25)+√(-16)`

`2.5+√(-16)`

Since we have a negative root just put i outside and take the negative

`10+i√(16)`

`10+i.4`

`10+4i`