8888L
8888L
14-09-2014
Mathematics
contestada
(8i)(4i)(-9i) simplify
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crisforp
crisforp
14-09-2014
[ 8 * 4 * ( - 9)] * ( i^2) * i = ( -288 ) * ( -1 ) * i = 288i.
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william11515
william11515
14-09-2014
the answer i got was 288i 8*4=32 i^2=-1 so -1*32= -32 then -32*-9i so it =288i
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