Look for Common Factor: Look for a common factor in all terms.Check if there is a common factor that can be factored out from all terms in the polynomial 14r3−10r2−7r+5.There is no common factor other than 1.
Group Terms for Factoring: Group terms to facilitate factoring by grouping. Group the terms into two pairs: (14r3−10r2) and (−7r+5).
Factor Out Common Factor: Factor out the greatest common factor from each group.From the first group 14r3−10r2, factor out 2r2, which gives us 2r2(7r−5).From the second group −7r+5, we can factor out −1, which gives us −1(7r−5).
Write Factored Groups: Write the expression with the factored groups.Now we have 2r2(7r−5)−1(7r−5).
Factor Out Common Binomial: Factor out the common binomial factor.The common binomial factor is (7r−5). Factor this out from the expression.This gives us (7r−5)(2r2−1).
Check Quadratic Factor: Check if the quadratic factor can be factored further.The quadratic factor 2r2−1 is a difference of squares and can be factored as (2r−1)(2r+1).
Write Final Factored Form: Write the final factored form of the polynomial.The final factored form of the polynomial is (7r−5)(2r−1)(2r+1).