Предмет: Алгебра, автор: faterigavolodimir665

Срочно обчислити дискримінант 3x в квадраті - 4+2=0​

catdavidthecat: 4х?

Ответы

Автор ответа: catdavidthecat
0

3х^2-4+2=0

3х^2-2=0

D=1-4*3*(-2)=1+24=25

x=(-1+5)/6=4/6=2/3=0,75

Або

x=(-1-5)/6=(-6)/6=-1


Якщо 4х то

3х^2-4х+2=0

D=16-4*3*2=16-24=-8

Дискримінант не може бути від’ємним, тому х-порожня множина

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