shelbyp2003
shelbyp2003
20-12-2017
Mathematics
contestada
simplify this expression (-4-9i)+(5-7i)
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bob3141
bob3141
20-12-2017
To simplify you combine like terms.
You open parenthesis-
-4 - 9i + 5 - 7i
combine like terms-
1 - 16i is your answer.
Hope this helps!
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tonb
tonb
20-12-2017
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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