Предмет: Алгебра, автор: marievna87

найдите корни уровнений 7x в квадрате -14x=0 если корней несколько, запишите их через точку с запятой в порядке возростания

Ответы

Автор ответа: BlazeBTM

7x^2-14x=0
7x(x-2)=0
x1=0
x2=14/7=2
Ответ: 0;2

marievna87: спс

Автор ответа: Katya1774

7x²-14x=0

Выносим общий множитель.

7x(x-2)=0

7x=0;

x=0; (Любое число, которое мы умножаем/делим на 0, будет оставаться нулевым)

x-2=0;

x=2

x1=0, x2=2

Ответ: 0;2.

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