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Find the product. Write your answer in standard form. (9−2y)29-2𝑦2

Question

Find the product. Write your answer in standard form. (9−2y)29-2𝑦2

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Solution

Claro, vamos a resolver el problema paso a paso.

Primero, identificamos la expresión que necesitamos expandir: (92y)2(9 - 2y)^2.

Para expandir esta expresión, utilizamos la fórmula del cuadrado de un binomio: (ab)2=a22ab+b2(a - b)^2 = a^2 - 2ab + b^2.

En este caso, a=9a = 9 y b=2yb = 2y.

Aplicamos la fórmula:

(92y)2=92292y+(2y)2 (9 - 2y)^2 = 9^2 - 2 \cdot 9 \cdot 2y + (2y)^2

Calculamos cada término por separado:

  1. 92=819^2 = 81
  2. 292y=36y-2 \cdot 9 \cdot 2y = -36y
  3. (2y)2=4y2(2y)^2 = 4y^2

Ahora, sumamos todos los términos:

8136y+4y2 81 - 36y + 4y^2

Finalmente, escribimos la respuesta en forma estándar, ordenando los términos de mayor a menor grado:

4y236y+81 4y^2 - 36y + 81

Por lo tanto, el producto de (92y)2(9 - 2y)^2 en forma estándar es:

4y236y+81 4y^2 - 36y + 81

This problem has been solved

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