У=√( (2-|x|)*(x+5) )
( (2-|x|)*(x+5) )≥0
1-----------------------------------------------------------------
(2-|x|) ≥0 2≥|x| x≤2 либо х ≥ -2 х∈[-2 ;2]
(x+5) ≥0 х≥-5 х∈х-5;+∞)
2------------------------------------------------------------------
(2-|x|) ≤0 2≤ [x| x≥2 либо х ≤ -2 х∈(-∞;-2 ]∪[2;;+∞]
(x+5) ≤0 х≤-5 х∈(-∞;-5]
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D(y)∈ (-∞;-5]∪ [-2 ;2]