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If \(104_x = 68\), find the value of x

Mathematics
WAEC 2000

If \(104_x = 68\), find the value of x

  • A. 5
  • B. 7
  • C. 8
  • D. 9
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Correct Answer: Option C
Explanation

\104\(_x\) = 68
1 \(\times x^2 + 0 \times x + 4 \times x^0\) = 68
x\(^2\) = 68 - 4; x\(^2\) = 64
x = \(\sqrt{64}\) = 8


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