Group the first two terms and the last two terms.

Factor out the greatest common factor (GCF) from each group.

Factor the polynomial by factoring out the greatest common factor, .

Factor by Grouping 9r^3+21r^2-21r-49

Skip to content
# Factor by Grouping 9r^3+21r^2-21r-49

Group the first two terms and the last two terms.

Factor out the greatest common factor (GCF) from each group.

Factor the polynomial by factoring out the greatest common factor, .

Factor by Grouping 9r^3+21r^2-21r-49