Question

2 x во 2 степени-3x-2=0

Answer 1

Ответ:

X первый = 2, X второй =  - 1/2

Объяснение:

Найдем дискриминант 9-4*2*(-2)=25

X первый = (3+5)/4 = 2

X второй = (3-5)/4 =  - 1/2

Answer 2

To solve the equation 2x^2 - 3x - 2 = 0, we can use the quadratic formula:

x = (-b ± √(b^2 - 4ac)) / (2a)

In this equation, a = 2, b = -3, and c = -2. Substituting these values into the quadratic formula, we get:

x = (-(−3) ± √((-3)^2 - 4(2)(-2))) / (2(2)) = (3 ± √(9 + 16)) / 4 = (3 ± √25) / 4 = (3 ± 5) / 4

So, we have two possible solutions:

1. x = (3 + 5) / 4 = 8 / 4 = 2
2. x = (3 - 5) / 4 = -2 / 4 = -0.5

Therefore, the solutions to the equation 2x^2 - 3x - 2 = 0 are x = 2 and x = -0.5.