Question

x+5supra x-5 totul la a2

Answer 1

$( { \frac{x + 5}{x - 5} })^{2} = \frac{( {x + 5})^{2} }{ ({x - 5})^{2} } = \frac{ {x}^{2} + 10x + 25}{ {x}^{2} - 10x + 25}$