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30.01.2021 •
Mathematics
Solve quadratic inequality x^2+4x≥0
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Ответ:
Step-by-step 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,+∞)
Ответ: