Mathematics
Grade-7
Easy

Question

Factor the expressions 9x - 81

  1. 9(x + 9)    
  2. 9(9x - 9)    
  3. 9(x - 9)    
  4. 9(9x + 9)    

hintHint:

Find the Greatest common factor of 81 and 9

The correct answer is: 9(x - 9)


    9x - 81
    The GCF of 9x and 81 is 9.
    = 9(x - 9)

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