alvaradorocho12 alvaradorocho12
  • 24-09-2020
  • Mathematics
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Factor x3 – 7x2 – 5x + 35 by grouping. What is the resulting expression?
(x2 – 7)(x - 5)
(x2 – 7)(x + 5)
(x2 - 5)(x-7)
(x2 + 5)(x-7)

Respuesta :

oscar236
oscar236 oscar236
  • 24-09-2020

Answer:

It's the third option: (x^2 - 5)(x - 7).

Step-by-step explanation:

x^3 – 7x^2 – 5x + 35

= x^2(x - 7) - 5(x - 7)        The (x - 7) is common so we have:

(x^2 - 5)(x - 7).

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