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Solve quadratic inequality x^2+4x≥0
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Solve quadratic inequality x^2+4x≥0

User Popolvar
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1 Answer

9 votes

Answer:

Explanation:

y = x² + 4x is an up-opening parabola with x-intercepts 0 and -4.

y ≥ 0 when x≤-4 or x≥0

range: (-∞,-4)∪[0,+∞)

User Qmega
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