How do you factor x^3 + 4x^2 - 9x - 6 =0? Algebra Polynomials and Factoring Factoring by Grouping 1 Answer Johnson Z. Nov 26, 2015 (x+2)(x+3)(x-3)(2x^2-3)=0 Explanation: Whenever you have a polynomial with more than 3 terms, it is always a good idea to group your like terms together: x^3+4x^2-9x-6=0 x^3-9x+4x^2-6=0 x(x^2-9)+2(2x^2-3)=0 x(x+3)(x-3)+2(2x^2-3)=0 (x+2)(x+3)(x-3)(2x^2-3)=0 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 3995 views around the world You can reuse this answer Creative Commons License