Question

Х^2-4х =-4 спасибо большое

Answer 1

Получается такое квадратное уравнение: х^2-4х+4= 0. Теперь по дискриминату считаем: D=b^2-4ac= 16-16 =0. Если дискриминант равен нулю, то корен расчитывается так: -b/2a т.е 4/2=2

Answer 2

Solving the Quadratic Equation

To solve the quadratic equation x^2 - 4x = -4, we can use the quadratic formula:

x = (-b ± √(b^2 - 4ac)) / (2a)

Where: - a is the coefficient of x^2, - b is the coefficient of x, and - c is the constant term.

In this case, the equation is in the form ax^2 + bx + c = 0, with a = 1, b = -4, and c = -4.

Applying the Quadratic Formula

Using the quadratic formula, we can calculate the solutions for x:

x = (-(-4) ± √((-4)^2 - 4*1*(-4))) / (2*1)

x = (4 ± √(16 + 16)) / 2

x = (4 ± √32) / 2

Simplifying the Solutions

The solutions for x are obtained by simplifying the expression under the square root:

x = (4 + √32) / 2 and x = (4 - √32) / 2

Final Answers

Therefore, the solutions for the given quadratic equation x^2 - 4x = -4 are:

x = (4 + √32) / 2 and x = (4 - √32) / 2