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Factor this polynomial completely.10x2 – 11x + 3A.(2x – 1)(5x – 3)B.(5x – 3)(x – 1)C.(5x – 1)(x – 3)D.(2x – 3)(5x – 1)

Question

Factor this polynomial completely.10x2 – 11x + 3A.(2x – 1)(5x – 3)B.(5x – 3)(x – 1)C.(5x – 1)(x – 3)D.(2x – 3)(5x – 1)

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Solution

Para factorizar completamente el polinomio 10x211x+310x^2 - 11x + 3, sigamos estos pasos:

  1. Identificar los coeficientes:

    • a=10a = 10
    • b=11b = -11
    • c=3c = 3
  2. Buscar dos números que multiplicados den ac=103=30a \cdot c = 10 \cdot 3 = 30 y que sumados den b=11b = -11:

    • Los números son 5-5 y 6-6 porque 56=30-5 \cdot -6 = 30 y 5+6=11-5 + -6 = -11.
  3. Reescribir el término del medio usando estos números: 10x25x6x+3 10x^2 - 5x - 6x + 3

  4. Agrupar los términos en pares: (10x25x)+(6x+3) (10x^2 - 5x) + (-6x + 3)

  5. Factorizar cada grupo: 5x(2x1)3(2x1) 5x(2x - 1) - 3(2x - 1)

  6. Sacar el factor común: (2x1)(5x3) (2x - 1)(5x - 3)

Por lo tanto, la factorización completa del polinomio es (2x1)(5x3)(2x - 1)(5x - 3).

La respuesta correcta es: A. (2x1)(5x3)(2x – 1)(5x – 3)

This problem has been solved

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