Предмет: Математика, автор: shodievs1

Помогите решить уравнение: 4x^2+20x=0

Ответы

Автор ответа: kirichekov

1

4x²+20x=0
4x(x+5)=0
4x=0 или x+5=0
x₁=0 x₂=-5

farziik: там будет не 5 а -5

Автор ответа: farziik

1

4x^2+20x=0
x(4x+20)=0
x1=0
4x+20=0
4x=-20
x=-20/4
x=-5
ответ: (-5;0)

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