Question

solve the equations for the variable
log2 x + log2 (x-2)-3=0

Answer 1

x = 4 or -2

Answer 2

\[\log_2 x(x-2) =3\]\[2^3=x(x-2)\]\[x^2-2x-8=0\]\[(x-4)(x+2) =0\]

Answer 3

x=4 or -2