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anonymous
 5 years ago
Radical expressions are killing me hoping someone can help me solve some problems!!
(9+4i)+(43i)
(4+4i)(8i)
anonymous
 5 years ago
Radical expressions are killing me hoping someone can help me solve some problems!! (9+4i)+(43i) (4+4i)(8i)

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amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0the top is just straight addition; get rid of the paranthesis the bottom is trickier; you have to multiply the left side by (1) and then add everything together

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.013 + i is the top 4+4i +8 +i = 12+5i make sense?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0or is this a fraction thing that doesnt have the bar?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Ok, I got the first one but the second is what is giving me trouble!!

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0no 2 separate problems

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0radical usually means something under a square root looking sign; rational tends to mean a glorified fraction....

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Yeah there are problems that have the square root sign as well this part of the chapter is called complex numbers

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0:) I figured that cause of the "i". The "i" acts like any other variable; but the trick is that when we get i^2 it equals 1 is the only difference .

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Yeah I have seen that in my reading. I wish there were some way to show the nth root of a number because I have some problems with the square root sign and I can't type them on here

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0So would the answer to the second one be 125i

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0I use sqrt(number) and cbrt(number) otherwise its: 4root(number) 6root(number serves the same purpose)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0if all these equations are are two seperate entities: then the top = 13+i and the bottom = 12+5i

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok, that second one is confusing!!

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0think of the second one like this: (8i) means: 1(8i)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0heres a tip: you recall that two negatives equals a positive right?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0then just distribute that () thru the brackets to get: 8 i +8 +i whenever you see two negatives, make them a positive :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0for example: 16 (4) = 164 = 16+4 = 20

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Gotcha!! I think the parenthesis were what was throwing me off for some reason!
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