How do you write 3x²-x-4 in factored form? Algebra Polynomials and Factoring Factoring Completely 1 Answer Nallasivam V Sep 15, 2015 (3x-4)(x+1) Explanation: 3x^2-x-4 3x^2-4x+3x-4 x(3x-4)+1(3x-4) (3x-4)(x+1) Answer link Related questions What is Factoring Completely? How do you know when you have completely factored a polynomial? Which methods of factoring do you use to factor completely? How do you factor completely 2x^2-8? Which method do you use to factor 3x(x-1)+4(x-1) ? What are the factors of 12x^3+12x^2+3x? How do you find the two numbers by using the factoring method, if one number is seven more than... How do you factor 12c^2-75 completely? How do you factor x^6-26x^3-27? How do you factor 100x^2+180x+81? See all questions in Factoring Completely Impact of this question 60676 views around the world You can reuse this answer Creative Commons License