Question

Simplify each expression. Write your answer as a complex number. (5-4i)+(2-7i)

Answer 1

7 - 11i

EXPLANATION :

Note that we can only combine like terms.

`\begin{gathered} (5-4i)+(2-7i) \\ =(5+2)+(-4i-7i) \\ =7-11i \end{gathered}`