Martinez Campos
01/26/2023 · Middle School

22 La expresión \( (m+5)(x+1)+(m+5)(2 x+1)+3 m+15 \) es equivalente a: A) \( (m+5)(3 x+2)+3(m+5) \) B) \( (m+5)(3 x+5) \) C) \( (m+5)(x+1)(2 x+4) \) D) \( (m+5)(3 x+2)+3 \) E) \( (m+5)(3 x+2)(3 m+15) \)

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Step-by-step Solution

Para simplificar la expresión \( (m+5)(x+1)+(m+5)(2 x+1)+3 m+15 \), primero podemos factorizar los términos que tienen \( (m+5) \): 1. Observamos que los dos primeros términos tienen el factor común \( (m+5) \): \[ (m+5)(x+1) + (m+5)(2x+1) = (m+5)\left((x+1) + (2x+1)\right) \] 2. Simplificamos dentro del paréntesis: \[ (x+1) + (2x+1) = x + 1 + 2x + 1 = 3x + 2 \] 3. Entonces, la expresión se convierte en: \[ (m+5)(3x+2) + 3m + 15 \] 4. Ahora, notamos que \( 3m + 15 \) también se puede factorizar como \( 3(m+5) \): \[ 3m + 15 = 3(m+5) \] 5. Por lo tanto, la expresión completa se puede reescribir como: \[ (m+5)(3x+2) + 3(m+5) \] 6. Finalmente, podemos factorizar \( (m+5) \) de la expresión: \[ (m+5)\left((3x+2) + 3\right) = (m+5)(3x + 5) \] Por lo tanto, la expresión original es equivalente a \( (m+5)(3x+5) \). La respuesta correcta es: B) \( (m+5)(3 x+5) \)

Quick Answer

La expresión \( (m+5)(x+1)+(m+5)(2 x+1)+3 m+15 \) es equivalente a \( (m+5)(3 x+5) \). La respuesta correcta es B.
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