Question

Write the product in standard form, (1 +31)(5-1 Answer here

Answer 1

Given:

`(1+3i)(5-i)`

To express the given product in standard form,

`\begin{gathered} (1+3i)(5-i)=5-i+5(3i)-i(3i) \\ =5-i+15i-3(i^2) \\ =5+14i-3(-1) \\ =14i+8 \end{gathered}`

Answer:

`(1+3i)(5-i)=14i+8`