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help!!
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\[\left( \sqrt{3}+i \right)\left( \sqrt{3}-2i \right)\]
i have an idea how to solve, just not too sure if im right
there are a few ways...
im sure you are most familiar with FOIL...right?
yeah
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|dw:1348707296753:dw|
|dw:1348707305046:dw|
step one. multiply together...and you get what
wait....do you mean \[\sqrt{3}\]
square root of 3
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ok cool
alright so what is that times itself
square root of 9...?
yes which is what
3
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1*1 = 1 2*2 = 4 . . . ?*? = 9
oh ...ys lol
so when ever you multiply a square root by its clone you remember that its the number underneath the root
|dw:1348707542618:dw|
sq rt of 3 * -2i
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wouldnt it be \[2i \sqrt{3}\]
**-2i
yes
|dw:1348707732324:dw|
|dw:1348707764376:dw|
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