Предмет: Геометрия, автор: kolaivasenko02

для рівняння x²+2x-3=0 знайдіть суму коренів а)-2 б)3 в)-3 г)2​

Ответы

Автор ответа: turbozvercom
1

Ответ:

Объяснение:

По теореме Виета:

x1+x2 = -b

В данном примере b = 2, то есть

x1+x2 = -2

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