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archie-graham_6097d566dd008
archie-graham_6097d566dd008
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archie-graham_6097d566dd008
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use frações algebricas (a-b).(a+b)=72 e resolva
in
1)sabendo que a+b=18 e a²-b²=72,calcule o valor de a.?
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archie-graham_6097d566dd008
May 2021
