Productos Notables en Álgebra
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Questions and Answers

¿Cuál de las siguientes expresiones es equivalente a (x - 2y)²?

  • x² + 4xy + 4y²
  • x² - 2xy + 4y²
  • x² - 4xy + 4y² (correct)
  • x² - 4xy - 4y²
  • Al factorizar la expresión x³ - 8, ¿qué fórmula se utiliza?

  • Producto de una suma y una diferencia
  • Diferencia de cuadrados
  • Diferencia de cubos (correct)
  • Suma de cubos
  • Aplicando la fórmula de la suma de cubos, ¿cómo se factoriza la expresión 27a³ + 8b³?

  • (3a + 2b)(9a² - 6ab + 4b²)
  • (9a + 2b)(9a² - 6ab + 4b²)
  • (3a + 2b)(9a² + 6ab + 4b²) (correct)
  • (3a + 2b)(9a² - 12ab + 4b²)
  • Si (x + 3)² se expande, ¿qué término intermedio se obtiene?

    <p>6x (B)</p> Signup and view all the answers

    Utilizando la fórmula del producto de una suma y una diferencia, ¿cómo se simplifica la expresión (5x + 2)(5x - 2)?

    <p>25x² - 4 (D)</p> Signup and view all the answers

    Al factorizar la expresión m² - 49, ¿qué tipo de fórmula se aplica?

    <p>Diferencia de cuadrados (A)</p> Signup and view all the answers

    En la expansión de (a + b)⁵, ¿qué coeficiente tiene el término a³b²?

    <p>10 (C)</p> Signup and view all the answers

    La fórmula de la suma de cubos (a³ + b³) = (a + b)(a² - ab + b²) se aplica para factorizar la expresión:

    <p>27x³ + 8y³ (C)</p> Signup and view all the answers

    Study Notes

    Notable Products in Algebra

    • Difference of Squares: (a - b)(a + b) = a² - b²

      • Represents the product of a binomial difference and a binomial sum as a difference of squares.
      • Fundamental for factoring expressions fitting this pattern.
    • Square of a Sum: (a + b)² = a² + 2ab + b²

      • Describes how the square of a binomial sum expands.
      • Requires adding twice the product of the terms to the sum of their squares.
    • Square of a Difference: (a - b)² = a² - 2ab + b²

      • Similar to the square of a sum, but subtracts twice the product of the terms from the sum of their squares.
    • Product of a Sum and a Difference: (a + b)(a - b) = a² - b²

      • A particular instance of the difference of squares formula.
      • Useful in factoring expressions where identical terms appear as a sum and a difference.
    • Cube of a Sum: (a + b)³ = a³ + 3a²b + 3ab² + b³

      • A more intricate expansion for the cube of a binomial sum.
      • The terms incorporate binomial coefficients aligning with the third row of Pascal's triangle.
    • Cube of a Difference: (a - b)³ = a³ - 3a²b + 3ab² - b³

      • The cube of a binomial difference, corresponding to the cube of a sum.
      • The signs of the terms alternate.
    • Sum of Cubes: a³ + b³ = (a + b)(a² - ab + b²)

      • Essential factorization for the sum of two perfect cubes.
      • The factorization contains a quadratic term.
    • Difference of Cubes: a³ - b³ = (a - b)(a² + ab + b²)

      • Crucial for factoring the difference of two perfect cubes.
      • Another factorization formula with a quadratic term.
    • General Binomial Expansion: (a + b)ⁿ = ∑ (n choose k) a^(n-k) b^k (for any non-negative integer n)

      • The binomial theorem, representing any positive integer power of (a + b) through binomial coefficients ("n choose k").
      • Involves all possible values of the exponent of 'b'.
    • Important Note: These formulas are essential tools for algebraic manipulations, enabling efficient factoring and expanding of expressions. Precise application of these formulas directly impacts the success of problem-solving.

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    Description

    Este cuestionario explora los productos notables en álgebra, incluyendo la diferencia de cuadrados, el cuadrado de una suma y el cubo de una suma. Conocer estas fórmulas es fundamental para comprender la factorización y expandir expresiones algebraicas. Ideal para estudiantes de nivel medio y superior.

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