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Art [367]
3 years ago
9

Simplify this expression (-4-9i)+(5-7i)

Mathematics
2 answers:
Charra [1.4K]3 years ago
8 0
To simplify you combine like terms. 
You open parenthesis-
-4 - 9i + 5 - 7i
combine like terms-
1 - 16i   is your answer. 
Hope this helps!

swat323 years ago
8 0
You can simplify the real and imaginary parts independently:

-4+5 = 1
-9i-7i = -16i

So the simplified expression is 1-16i
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