Question

решите неравенство y=x(x+2)/x-3 ≤ 0

Answer 1

y=x(x+2)/(x-3) ≤ 0

ОДЗ x-3≠0  x ≠3  

x(x+2)=0  x=0  x= -2

_-____-2__+__0___-___3___+___

x∈(-∞; -2] ∪ [0; 3)