ricayah ricayah

10-12-2014
Mathematics

Answered

(7+2i)(2+3i) what is this answer

Answer :

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

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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

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