Question

решите неравенство x-10/x-8<0

Answer 1

x-10/x-8<0
$x^2-8x-10\ \textless \ 0$
$x^2-8x-10\ \textless \ 0$
D=64+40=104  √D=4√26
x=8-4√26/2=4(2-2√26)/2=2-2√26
x=8+4√26/2=4(2+2√26)/2=2+2√26