Question

Один вопрос алгебра ,,

Answer 1

1.
$y= sqrt{x}-3 \ y=0 sqrt{x}-3=0 \ sqrt{x}-3=0 \ x=3 \ y=0 \ x=0 \ y=-3$

2.
$y=midsqrt{x}-3mid \ y=0 x textgreater 0 \ sqrt{x}+3=0 \ x=9 \ y=0 x textless 0 \ -sqrt{x}-3=0 \ x=9 \ x=0 y= pm{3}$

3.
$y=sqrt{mid{x}mid}}-3 \ y=0 x textgreater 0 \ sqrt{mid{x}mid}}-3=0 \ x=pm{3} \ y=0 x textless 0 \ x=pm{3}$

4.
$y=mid{sqrt{mid{x}mid}}-3mid} \ y=0 x textgreater 0 \ x=pm{3}$

Answer 2

надеюсь помог тебе