Given that log4 Y - 1 log4 frac 1 2 x 1 and log... - JAMB Mathematics 1998 Question

log₄(y - 1) + log₄(\(\frac{1}{2}\)x) = 1

log₄(y - 1)(\(\frac{1}{2}\)x) \(\to\) (y - 1)(\(\frac{1}{2}\)x) = 4 ........(1)

log₂(y + 1) + log₂x = 2

log₂(y + 1)x = 2 \(\to\) (y + 1)x = 2₂ = 4.....(ii)

From equation (ii) x = \(\frac{4}{y + 1}\)........(iii)

put equation (iii) in (i) = y (y - 1)[\(\frac{1}{2}(\frac{4}{y - 1}\))] = 4

= 2y - 2

= 4y + 4

2y = -6

y = -3

x = \(\frac{4}{-3 + 1}\)

= \(\frac{4}{-2}\)

X = 2

therefore x = -2, y = -3