OTBET:
1. (-1;-4);
2. x∈(-3;1);
3. x∈(-1;+∞);
4. y=(x+1)²-4=x²+2x+1-4=x²+2x-3
y=x²+2x-3.
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Answers & Comments
OTBET:
1. (-1;-4);
2. x∈(-3;1);
3. x∈(-1;+∞);
4. y=(x+1)²-4=x²+2x+1-4=x²+2x-3
y=x²+2x-3.