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Find the product. Write any variables in alphabetical order. (2q+5r)(2q−5r)2𝑞+5𝑟2𝑞-5𝑟

Question

Find the product. Write any variables in alphabetical order. (2q+5r)(2q−5r)2𝑞+5𝑟2𝑞-5𝑟

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Solution

Claro, vamos a resolver el problema paso a paso.

Primero, observamos que la expresión dada es un producto de binomios conjugados: (2q+5r)(2q5r)(2q + 5r)(2q - 5r).

Para resolver esto, utilizamos la fórmula de productos notables para binomios conjugados, que es: (a+b)(ab)=a2b2 (a + b)(a - b) = a^2 - b^2

En este caso, a=2qa = 2q y b=5rb = 5r. Aplicamos la fórmula:

(2q+5r)(2q5r)=(2q)2(5r)2 (2q + 5r)(2q - 5r) = (2q)^2 - (5r)^2

Ahora, calculamos cada término por separado:

(2q)2=4q2 (2q)^2 = 4q^2 (5r)2=25r2 (5r)^2 = 25r^2

Sustituimos estos valores en la fórmula:

(2q+5r)(2q5r)=4q225r2 (2q + 5r)(2q - 5r) = 4q^2 - 25r^2

Por lo tanto, el producto es:

4q225r2 4q^2 - 25r^2

This problem has been solved

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