Question 1023147
2log25 X - log25 (25-4X) = 1/2

Plis! 
<pre>{{{2 * log (25, (x)) - log (25, (25 - 4x)) = 1/2}}}
{{{log (25, (x)^2) - log (25, (25 - 4x)) = 1/2}}} --- Applying {{{2 * log (a, (b)) = log (a, b^2)}}}
{{{log (25, (x^2/(25 - 4x))) = 1/2}}} ----------- Applying {{{log (a, (b)) - log (a, (c))}}} = {{{log (a, (b/c))}}}
{{{x^2/(25 - 4x) = matrix(2,1, "", 25^(1/2))}}}
{{{x^2/(25 - 4x) = 5}}}
{{{x^2 = 5(25 - 4x)}}} -------- Cross-multiplying
{{{x^2 = 125 - 20x}}}
{{{x^2 + 20x - 125 = 0}}}
(x - 5)(X + 25) = 0
{{{highlight_green(x = 5)}}}             OR          x = - 25 (EXTRANEOUS, so ignore)