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OpenStudy (anonymous):
Simplify. Answer in a+bi. (7-i)-(9+4i)
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OpenStudy (tyteen4a03):
This expression can be easily simplified. Just apply what you have learnt in basic arithmetics into this question.
OpenStudy (jhannybean):
expand -(9+4i) by multiplying in the negative first.
OpenStudy (jhannybean):
So you'll have 7- i - 9 - 4i = (7 - 9) - (i + 4i)
OpenStudy (jhannybean):
Just reduce that and you'll get your answer in terms of a + bi
OpenStudy (anonymous):
I think the answer is 7-37 i.
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OpenStudy (jhannybean):
no that is not the answer.
OpenStudy (anonymous):
is it - 2 + 3 i ?
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