Grouping for Factoring: Group the terms into two pairs to prepare for factoring by grouping. Group the first two terms and the last two terms separately. 8m3+16m2 + −9m−18
Factor out Common Factors: Factor out the greatest common factor from each group.From the first group, factor out 8m2. From the second group, factor out −9.8m2(m+2)−9(m+2)
Common Factor Product: Notice that (m+2) is a common factor in both groups.Write the expression as a product of (m+2) and another factor.(8m2−9)(m+2)
Further Factoring: Check if the factors can be factored further.The factor 8m2−9 is a difference of squares and can be factored further.(2m)2−(3)2=(2m+3)(2m−3)
Final Factored Form: Write the final factored form of the original expression.(2m+3)(2m−3)(m+2)