web2.0calc
 
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 Factor

0
531
2
avatar

r^2+4

 Jul 23, 2016

2+0 Answers

 #1
avatar+118609 
0

This cannot be factorised

 Jul 24, 2016
 #2
avatar+9519 
0

\((r+2i)(r-2i)\)

.
 Jul 24, 2016

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