Question

Solve the equation:log(x-4)+log(x+4)=log25

Answer 1

log(x-4)(x+4) = log 25

(x-4)(X+4)=25

${x}^{2} - {4}^{2} = 25$

${x}^{2} = 25 + 16$

${x}^{2} = 41$

$x = \sqrt{41}$