Question

Solve for x; log(x-1) + log(x+1) =log(1 to the base2)

Answer 1

Answer:

LOG (X-1)(X+1) = LOG 1/2                         LOG A+LOG B = LOG AB

LOG GETS CANCELLED

X^2 - 1^2 = 1/2

X^2 = 1/2 + 1

X^2 = 3/2

X = ROOT(3/2)