Seudónimo
Seudónimo
04-04-2017
Mathematics
contestada
Someone help me please?
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choco4
choco4
04-04-2017
Is a (r + 3) (r - 3)
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ot167384
ot167384
04-04-2017
(r-3)^2 I think this is correct because r^2 means r*r and you are subtracting 9 so I just multiplyed 3*3.
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