Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

Factor.\newline8r3+8r23r38r^3 + 8r^2 - 3r - 3

Full solution

Q. Factor.\newline8r3+8r23r38r^3 + 8r^2 - 3r - 3
  1. Grouping for Factoring: Group the terms into two pairs to prepare for factoring by grouping.\newlineGroup the first two terms and the last two terms separately.\newline8r3+8r23r38r^3 + 8r^2 - 3r - 3 can be grouped as (8r3+8r2)+(3r3)(8r^3 + 8r^2) + (-3r - 3).
  2. Factor out Common Factors: Factor out the greatest common factor from each group.\newlineFrom the first group 8r3+8r28r^3 + 8r^2, factor out 8r28r^2.\newline8r3+8r2=8r2(r+1)8r^3 + 8r^2 = 8r^2(r + 1).\newlineFrom the second group 3r3-3r - 3, factor out 3-3.\newline3r3=3(r+1)-3r - 3 = -3(r + 1).
  3. Rewrite with Factored Groups: Rewrite the expression using the factored groups.\newlineThe expression becomes 8r2(r+1)3(r+1)8r^2(r + 1) - 3(r + 1).
  4. Factor out Common Binomial: Factor out the common binomial factor (r+1)(r + 1). The expression now has a common factor of (r+1)(r + 1) in both terms. 8r2(r+1)3(r+1)8r^2(r + 1) - 3(r + 1) can be factored as (r+1)(8r23)(r + 1)(8r^2 - 3).
  5. Check Quadratic Factoring: Check if the quadratic term 8r238r^2 - 3 can be factored further.\newlineThe quadratic 8r238r^2 - 3 is a difference of squares and cannot be factored over the integers since 33 is not a perfect square.\newlineTherefore, the factored form is (r+1)(8r23)(r + 1)(8r^2 - 3).