Ashley wants to generate a Pythagorean triple when x = 11 and y = 4 using the polynomial identity (x2+y2)2 = (x2−y2)2+(2xy)2 . Which of the following is one of the values of the Pythagorean triple?(1 point) Responses 44 44 137 137 49 49 225

1 answer

To generate a Pythagorean triple using the polynomial identity \((x^2 + y^2)^2 = (x^2 - y^2)^2 + (2xy)^2\), we will first calculate the required components using \(x = 11\) and \(y = 4\).

  1. Calculate \(x^2\) and \(y^2\): \[ x^2 = 11^2 = 121 \] \[ y^2 = 4^2 = 16 \]

  2. Now compute \(x^2 + y^2\): \[ x^2 + y^2 = 121 + 16 = 137 \]

  3. Compute \(x^2 - y^2\): \[ x^2 - y^2 = 121 - 16 = 105 \]

  4. Compute \(2xy\): \[ 2xy = 2 \cdot 11 \cdot 4 = 88 \]

Now we need to find the squares of these values to represent the Pythagorean triple:

  • The left-hand side of the identity is: \[ (x^2 + y^2)^2 = 137^2 = 18769 \]

  • The right-hand side, using our previously computed values, is: \[ (x^2 - y^2)^2 + (2xy)^2 = 105^2 + 88^2 \]

    • Calculate \(105^2\): \[ 105^2 = 11025 \]
    • Calculate \(88^2\): \[ 88^2 = 7744 \]
    • Thus, the right-hand side is: \[ 11025 + 7744 = 18769 \]

Since both sides match, the values of the Pythagorean triple generated are:

  • \( (x^2 - y^2) = 105 \)
  • \( 2xy = 88 \)
  • \( (x^2 + y^2) = 137 \)

Among the given options, the value of the Pythagorean triple is 137.