Question

x+5/x-5=x-5/x+5
решите пожалуйста

Answer 1

$frac{x+5}{x-5}= frac{x-5}{x+5}\\ left { {{x-5 neq 0} atop {x+5 neq 0}} right. ; ; = textgreater ; ; left { {{x neq 5} atop {x neq -5}} right. \\(x+5)^2=(x-5)^2\(x+5)^2-(x-5)^2=0\(x+5+x-5)(x+5-x+5)=0\2x*10=0\20x=0\x=0$