Question

$frac{560}{x-10}$-$frac{560}{x}$=1

Answer 1

$frac{560x -560(x-10)}{x(x-10)} =1$
$560x -560x +5600 = x*(x-10)$
$5600 = x^{2} - 10x$
$x^{2} -10x -5600 = 0$
d = -10^2 - (-4)^2*1*5600 = 22500
x1 = -70
x2 = 80

Answer 2

ты восьмой класс или нет?

Answer 3

нет