the answer is 1396 because if u multiply 81 times 16 is 1396 bye guys hope you trust my answer
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How about: 9 times 9 = 81 or 81 times 1 = 81
81 times 7 or 7 times 81 equals 567
√(16/81) = (√16)/(√81) = 4/9 → The two roots are 4/9 and -4/9
81 x 2 - 16 = 146
81 times 8 = 648