f (x) = 2x² + 12x + 15 as x → -0f (x) → -∞ as x → -o f (x) → - as x → +0 f (x) → -0 as x →+o (x) → + Ов - -0∞ f (x) → +∞ f (x) as x -o f(x) → t∞ as x as X → +0o f (x) as x -+00

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