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

  • A 5
  • B 7
  • C 8
  • D 9
waec 2000mathematics

The correct answer is C. 8

\(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\)

Previous question Next question