Translated version
Double root
A single root of a quadratic equation obtained when D = 0. The graph touches the axis at this point, and the sign does not change.
Original version
Dviguba šaknis
Viena kvadratinės lygties šaknis, gaunama, kai D = 0. Grafikas ties ja paliečia ašį, o ženklas nesikeičia.
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