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Задача Задача №2638380
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Аноним
18 января 2025 04:21 · публичный вопрос
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Аноним

y²-x=14 x-y=-2

Ответ нейросети
18 января 2025 04:21

To solve the system of equations:

  1. \( y^2 - x = 14 \) (Equation 1)
  2. \( x - y = -2 \) (Equation 2)

First, we can rearrange Equation 2 for \( x \):

\[ x = y - 2 \]

Now, we can substitute this expression for \( x \) into Equation 1:

\[ y^2 - (y - 2) = 14 \]

This simplifies to:

\[ y^2 - y + 2 = 14 \]

Now, move 14 to the left side:

\[ y^2 - y + 2 - 14 = 0 \]

\[ y^2 - y - 12 = 0 \]

Next, we will factor the quadratic equation:

\[ (y - 4)(y + 3) = 0 \]

This gives us two solutions for \( y \):

\[ y - 4 = 0 \quad \Rightarrow \quad y = 4 \]

\[ y + 3 = 0 \quad \Rightarrow \quad y = -3 \]

Now we can find the corresponding values for \( x \) using \( x = y - 2 \).

  1. For \( y = 4 \):

\[ x = 4 - 2 = 2 \]

  1. For \( y = -3 \):

\[ x = -3 - 2 = -5 \]

Thus, the two solutions to the system of equations are:

  1. \( (x, y) = (2, 4) \)
  2. \( (x, y) = (-5, -3) \)

These are the pairs that satisfy both equations.