Lnjross Lnjross
  • 12-11-2017
  • Mathematics
contestada

9 + 21 factor the expression using gcf

Respuesta :

helpmeple4se helpmeple4se
  • 12-11-2017
factors of 9:

1, 9, 3

factors of 21:

1, 21, 3, 7

3 is greatest Common factor.

Divide both numbers by three and put three outside the bracket


3(3+7)

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21sberman 21sberman
  • 12-11-2017
Both number are divisible by 3, so divide each by 3

3(3+7)
Answer Link

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