June 2021 0 66 Report
(x au carré + 9) -25 = 0   (x au carré +9)= 25 
x au carré = 25 - 9 
x au carré = 16 
x = √16 = 4
x = 4

il faut interpréter le resultat donc pouvez vous m'aidez svp!!! c noter
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