Question

Нужна помощь X^2-5|x|+6=0

Answer 1

$x^2-5|x|+6=0\\\\ |x|^2-5|x|+6=0\\\\ |x|*|x|-2*|x|-3*|x|+6=0\\\\ |x|*(|x|-2)-3*(|x|-2)=0\\\\ (|x|-3)*(|x|-2)=0\\\\ |x|-3=0\ \ or\ \ |x|-2=0\\\\ |x|=3\ \ or\ \ |x|=2\\\\ x=\pm3\ \ or\ \ x=\pm2$

Ответ: $\pm2;\ \pm3$