Question

Найди 2 корня |-0,42|-|у|•|-2,8|

Answer 1

|-0,42|-|у|•|-2,8| =0
0.42-|y|*2.8=0
-|y|*2.8=-0.42
|y|=0.42/2.8
|y|=0.15
y₁=0.15
y₂=-0.15