How do you factor by grouping #x^3-12-3x^2+4x#? Algebra Polynomials and Factoring Factoring by Grouping 2 Answers GiĆ³ Apr 9, 2015 Have a look: Collect between the 1st and 3rd term and between 2nd and 4th: Alan P. Apr 9, 2015 #x^3 -12-3x^2+4x# can be re-grouped as #(x^3-3x^2) +(4x-12)# which can then be factored as #(x^2)(x-3) + (4)(x-3)# then combining the common factor from each term #(x^2+4)(x-3)# 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 667 views around the world You can reuse this answer Creative Commons License