Group Terms: Group terms to make factoring easier.We can group the terms as follows: 5s3+10s2 and −s−2.
Factor Common Factor: Factor out the greatest common factor from each group.From the first group 5s3+10s2, we can factor out 5s2, which gives us 5s2(s+2).From the second group −s−2, we can factor out −1, which gives us −1(s+2).
Write Factored Expression: Write the expression with the factored groups.Now we have 5s2(s+2)−1(s+2).
Factor Common Binomial: Factor out the common binomial factor.We can see that (s+2) is a common factor in both terms, so we factor it out to get (s+2)(5s2−1).
Factor Difference of Squares: Factor the difference of squares if possible.The term 5s2−1 is a difference of squares, as it can be written as (5s)2−12. We can factor this as (5s2−1)=(5s+1)(5s−1).
Write Final Form: Write the final factored form.The fully factored form of the polynomial is (s+2)(5s+1)(5s−1).