Identify GCF: Identify the greatest common factor (GCF) of the terms in the expression 9x−24. The GCF of 9x and 24 is 3.
Factor out GCF: Factor out the GCF from the expression.The factored expression is 3(3x−8).
Check factored expression: Check to ensure that the factored expression, when expanded, gives the original expression. 3(3x−8)=9x−24, which is the original expression.