Question

X² + y² = 4, x - y = 2.​

Answer 1

Ответ:

1) x и y равны 2

2) x= любому числу но на 2 больше y

Объяснение:

я не понял что нужно с этим делать

Answer 2

To solve the system of equations:

1. x² + y² = 4
2. x - y = 2

You can use the substitution method. First, solve one of the equations for one of the variables and then substitute it into the other equation. Let's solve equation (2) for x:

x = y + 2

Now, substitute this expression for x into equation (1):

(y + 2)² + y² = 4

Expand and simplify the equation:

y² + 4y + 4 + y² = 4

Combine like terms:

2y² + 4y + 4 = 4

Now, subtract 4 from both sides to set the equation equal to zero:

2y² + 4y = 0

Factor out a 2y:

2y(y + 2) = 0

Now, set each factor equal to zero and solve for y:

1. 2y = 0 y = 0

2. y + 2 = 0 y = -2

So, you have two possible values for y: y = 0 and y = -2. Now, you can find the corresponding values of x using the equation x = y + 2:

1. When y = 0: x = 0 + 2 x = 2

2. When y = -2: x = -2 + 2 x = 0

So, the solution to the system of equations is:

1. x = 2 and y = 0
2. x = 0 and y = -2

There are two solutions to the system of equations.