Question

2,8х2 – 3х + 8 = 0;​

Answer 1

Ответ:

$x = - \frac{40}{13}$

Объяснение:

$5.6x - 3x + 8 = 0$

$2.6x + 8 = 0$

$2.6x = - 8$

$x = - \frac{40}{13}$

Answer 2

The equation you've provided is a quadratic equation in terms of 'x'. To solve for 'x', we need to find the values of 'x' that satisfy the equation:

2x^2 - 3x + 8 = 0

This equation can be solved using various methods, such as factoring, the quadratic formula, or completing the square. Since this equation doesn't factor easily, I'll use the quadratic formula:

For an equation of the form ax^2 + bx + c = 0, the solutions for 'x' are given by:

x = (-b ± √(b^2 - 4ac)) / 2a

In your equation, a = 2, b = -3, and c = 8. Plugging these values into the formula:

x = (3 ± √((-3)^2 - 4 * 2 * 8)) / (2 * 2) x = (3 ± √(9 - 64)) / 4 x = (3 ± √(-55)) / 4

Since the term inside the square root is negative, this equation has two complex solutions:

x = (3 + √55 * i) / 4 x = (3 - √55 * i) / 4

Where 'i' is the imaginary unit, which is √(-1).

So, the solutions to the equation 2x^2 - 3x + 8 = 0 are complex numbers.