Astuce
Region: FR
Thursday 05 November 2026 16:38:21 GMT
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socrate :
32=81-49=9²-7² 9^x-7^x=9²-7² => x=2
2026-11-05 17:24:22
1
KAN BONIFACE :
9^x-7^x=32 9^x-7^x=2.16=(9-7)(9+7) 9^x-7^x=9²-7² 9^x=9² ; 7^x=7² x=2
2026-11-05 20:08:36
1
Svetlana :
Я подбором нашла 2 пока вы писали
2026-11-06 09:17:42
1
Azər Yusifov :
2
2026-11-05 17:49:19
0
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