How do you factor #-8w+49w^2+14w^3-28#? Algebra Polynomials and Factoring Factoring by Grouping 1 Answer GiĆ³ May 4, 2015 Collect #2w# between the first and third term and #7# between the second and rourth: #2w(-4+7w^2)+7(7w^2-4)=# collect #(7w^2-4)# #=(7w^2-4)(2w+7)# Answer link Related questions What is Factoring by Grouping? How do you factor by grouping four-term polynomials and trinomials? Why does factoring polynomials by grouping work? How do you factor #2x+2y+ax+ay#? How do you factor #3x^2+8x+4# by using the grouping method? How do you factor #6x^2-9x+10x-15#? How do you group and factor #4jk-8j^2+5k-10j#? What are the factors of #2m^3+3m^2+4m+6#? How do you factor quadratics by using the grouping method? How do you factor #x^4-2x^3+5x-10#? See all questions in Factoring by Grouping Impact of this question 1514 views around the world You can reuse this answer Creative Commons License