Question

What is the product of (2-i)(4+i)?
And can you show me the steps of how to do it

Answer 1

(2-i)(4+i) = 2(4+i) -i(4+i)
= 8+2i-4i-i^2
= 8-2i-(-1) (because i^2=-1)
= 8-2i+1
= 9-2i
Hope that helped.

Answer 2

Thank you so much

Answer 3

@bs07 You are welcomed.