Question

2x^2-8=0 Дискриминант

Answer 1

Ответ:

+-2

Пошаговое объяснение:

2x^2=8

x^2 = 4

x= +- 2

Answer 2

Ответ:дискриминант=64; х1=2; х2=-2.

Пошаговое объяснение:

2x^2+0х-8=0

а=2; в=0; с=-8;

Д=в^2-4ас=0^2-4*2*(-8)= 64

х1=(-в+√Д)/2а=(-0+8)/2*2=8/4=2;

х2=(-в-√Д)/2а=(-0-8)/2*2=-8/4=-2;

Answer 3

To find the discriminant of the quadratic equation 2x^2 - 8 = 0, we can use the formula:

Discriminant (D) = b^2 - 4ac

In this equation, a = 2, b = 0, and c = -8. Plugging these values into the formula, we have:

D = (0)^2 - 4(2)(-8) D = 0 - 4(-16) D = 0 + 64 D = 64

Therefore, the discriminant (D) of the equation 2x^2 - 8 = 0 is 64.