Group Terms: Group terms to find common factors.We can group the terms as follows: (4f3+4f2) and (−7f−7).
Factor Common Factors: Factor out the greatest common factor from each group.From the first group 4f3+4f2, we can factor out 4f2, giving us 4f2(f+1).From the second group −7f−7, we can factor out −7, giving us −7(f+1).
Write Factored Expression: Write the expression with the factored groups.Now we have 4f2(f+1)−7(f+1).
Factor Common Binomial: Factor out the common binomial factor.We can see that (f+1) is a common factor in both terms, so we factor it out to get (f+1)(4f2−7).