Question

Решите уравнения: а)|х|=4,|х|=0,|х|=-4; б)|х-3|=2,|х-3|=-2

Answer 1

$a)|x|=4= textgreater x= left { {{+4} atop {-4}} right. \ b)|x|=0= textgreater x=0\ c)|x|=-4...\ d)|x-3|=2= textgreater left { {{x-3=-2= textgreater x=1} atop {x-3=2= textgreater x=5}} right. \ e)|x-3|=-2....$