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Câu 12:

Nghiệm của phương trình ${{9}^{2x+1}}=81$

Câu 12: Nghiệm của phương trình 92x+1=81{{9}^{2x+1}}=8192x+1=81 là

Thông tin câu hỏi

Câu 12:

Nghiệm của phương trình ${{9}^{2x+1}}=81$ là