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giabaotk123


[TEX] 16^x + 81^x + 24^x + 54^x - 4.36^x = 0[/TEX]
[TEX]9{^x^2} + 9^{x+6} = 2.3^{x^2 + x + 6}[/TEX]
[TEX]9{^x^2} + 9^{x+6} = 2.3^{x^2 + x + 6}[/TEX]
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