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.8r3+8r2−3r−3 can be grouped as (8r3+8r2)+(−3r−3).
Factor out Common Factors: Factor out the greatest common factor from each group.From the first group 8r3+8r2, factor out 8r2.8r3+8r2=8r2(r+1).From the second group −3r−3, factor out −3.−3r−3=−3(r+1).
Rewrite with Factored Groups: Rewrite the expression using the factored groups.The expression becomes 8r2(r+1)−3(r+1).
Factor out Common Binomial: Factor out the common binomial factor (r+1). The expression now has a common factor of (r+1) in both terms. 8r2(r+1)−3(r+1) can be factored as (r+1)(8r2−3).
Check Quadratic Factoring: Check if the quadratic term 8r2−3 can be factored further.The quadratic 8r2−3 is a difference of squares and cannot be factored over the integers since 3 is not a perfect square.Therefore, the factored form is (r+1)(8r2−3).