ricayah
ricayah
10-12-2014
Mathematics
contestada
(7+2i)(2+3i) what is this answer
Respuesta :
37soccerboss
37soccerboss
10-12-2014
this turns into
14+4i+21i+6i^2
14+25i+6(-1)
14+25i-6
8+25i
is the answer
Answer Link
LittleBear1128
LittleBear1128
10-12-2014
Use FOIL
First
Outter
Inner
Last
(7*2)+(7*3i)+(2i*2)+(2i*3i)
=14+21i+4i+6i
=14+31i
So your answer would be 14+31i
Answer Link
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