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Автор - Sews123s

Помогите пожалуйста, нужно найти вершины параболы

Ответ

Автор - Nelia2019

у=(х+5)²-4

у=х²+10х+25-4

у=х²+10х+21

х (вершины)= -в/2а=-10/2= -5;

у(вершины) = (-5+5)²-4= -4

Ответ: координаты вершины параболы (-5; -4).

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