5/9 – ( x – 2,5 ) mũ 2 = 1
7 mũ x + 7 mũ 2x+3 = 344
5/9 – ( x – 2,5 ) mũ 2 = 1 7 mũ x + 7 mũ 2x+3 = 344
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5/9 – ( x – 2,5 ) mũ 2 = 1
7 mũ x + 7 mũ 2x+3 = 344