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OpenStudy (anonymous):
Can someone help me with this problem?
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OpenStudy (anonymous):
\[(3\sqrt{5}+8i) + (-\sqrt{45} -6i)\]
OpenStudy (anonymous):
I think you use FOIL. right?
OpenStudy (anonymous):
You wouldn't use foil because you are not multiplying.
OpenStudy (anonymous):
ok...then what would i do?? so confused. -.-
OpenStudy (anonymous):
Add like terms. 8i and -6i
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OpenStudy (anonymous):
But first get rid of the parentheses.
OpenStudy (precal):
|dw:1354471689033:dw|
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