Предмет: Алгебра, автор: lakera

Решите уравнение (с решением)
2x²+x-1
---------- = 0
x²-1

Ответы

Автор ответа: litanalove
0
(2x² +x -1)/(x² -1) =0
(x +1)(2x -1) /(x -1)(x +1) =0
(2x -1) /(x -1) =0
2x -1 =0*(x -1)
2x -1 =0
2x =1
x =1/2
x =0.5
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