Q. Apply the distributive property to factor out the greatest common factor.27−18r=
Identify GCF: Identify the greatest common factor (GCF) of 27 and 18. The factors of 27 are 1, 3, 9, 27. The factors of 18 are 1, 2, 3, 181, 9, 18. The greatest common factor is 9.
Factor out GCF: Apply the distributive property to factor out the GCF from the expression 27−18r.\ Factor out 9 from each term.\ 9(3)−9(2r)=9(3−2r)
Check factored expression: Check the factored expression by distributing 9 back into the parentheses to ensure it equals the original expression.9(3−2r)=9×3−9×2r=27−18rThe original expression is obtained, so the factoring is correct.