Предмет: Алгебра, автор: Jansik

Помогите решить уравнение x^2+5x+6=o

Ответы

Автор ответа: Lesben
0
xˇ2+5x+6=0, (x+2)(x+3)=0
a)x+2=0, x=-2
b)x+3=0,x=-3
Автор ответа: Jansik
0
Через дискриминант
Автор ответа: Lesben
0
D=25-24=1, VD=V1=1,x1=1/2(-5+1)=-2,x2=1/2(-5-1)=-3
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