Question

x la a doua -5x-7,descompunere in factori,dau coroana

Answer 1

$x^{2-5x-7}=x^{-5-5x}$
$x^{-5-5x}$se imparte prin $x^{-5}$
$x^{2-5x-7}=x^{-5}*x^{1+x}$
$x^{2-5x-7}=x^{-5}*x^{x}*x$