3 years ago

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

Mathematics

2 answers:

Aleksandr-060686 [28]3 years ago

6 0

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

antoniya [11.8K]3 years ago

3 0

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

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

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