Question

(-3+7i)(1-2i) can you help me with the answer to this

Answer 1

11 + 13i

Explanation:

A must know is that

`√(i) = - 1`

Complex numbers

1st: foil the equations

`- 3(1 - 2i) + 7i(1 - 2i)`

`- 3 + 6i + 7i- 14 {i}^(2)`

2nd Combine like terms and substitute

`i ^(2) for \: - 1`

`- 3 + 14 + 13i`

`11 + 13i`