Предмет: Алгебра, автор: alena6251

решить квадратное уравнение
$x 2 + 8x + 15 = 0$

Ответы

Автор ответа: youknow35

0

Ответ:

x+2+8x+15=0

2x+8x+15=0

10x+15=0

10x=-15

2x=-3

Автор ответа: gauharbajgutdinova

0

Объяснение:

2x+8x+15=0

10x+15=0

10x=-15

x=-3/2

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