Respuesta :

Answer:

(3x-7) (x-7)

Step-by-step explanation:

Answer:

(3x-7) (x-7)

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Step-by-step explanation:

32−28+49

32−7−21+49

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32−7−21+49

(3−7)−7(3−7)

---->(3x-7) (x-7)

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