Perform the indicated operation and write in standard form 5i+(-9-i)

asked Aug 1, 2015 165k views

1 vote

7.6k points

Please log in or register to add a comment.

2 votes

$5i+(-9-i)=\\ 5i-9-i=\\ -9+4i$

7.2k points

2 votes

Since the sign before the parentheses is a + , we can just remove the parentheses.

5i + (-9 - i) = 5i - 9 - i = -9 + 4i

6.6k points

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

8.8m questions

11.4m answers