Respuesta :

K=0 but for sum reason they want me to type 20 characters

Answer:

7(k-1)

Step-by-step explanation:

Distibute:

-k-1(-8k+7)

 -k+8k-7

Combine like terms:

-k+8k-7

7k-7

common factor:

factor by grouping

factor by grouping

-k-(-8k+7

  7(k-1)

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