q32

Asked by  | 1st Sep, 2009, 07:10: PM

Expert Answer:

log (x + 1) + log (x - 1) = log 24

log (x + 1)(x - 1) = log 24,

taking antilogs on both sides,

(x + 1)(x - 1) = 24

x 2 - 1 = 24

x 2 = 25

x = ±5

Regards,

Team,

TopperLearning.

 

Answered by  | 2nd Sep, 2009, 12:05: AM

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