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 1660 views around the world You can reuse this answer Creative Commons License