How do you factor -5 - 15x? Algebra Polynomials and Factoring Monomial Factors of Polynomials 1 Answer Lucy Jul 2, 2018 -5(1+3x) Explanation: By taking out the common factor which in this case is -5 -5-15x=-5(1+3x) Answer link Related questions What are Monomial Factors of Polynomials? How do you factor polynomials by finding the greatest common factor? How can a factoring problem be checked? How do you find the greatest common factors of variable expressions? How do you factor 3a+9b+6? What is the greatest common factor of a^3-3a^2+4a? How do you factor 12xy+24xy^2+36xy^3? How do you find the greatest common factor of 45y^{12}+30y^{10}? How do you factor 92x^10y^4 - 54x^12y^9? How do you factor 4x^2+x? See all questions in Monomial Factors of Polynomials Impact of this question 2047 views around the world You can reuse this answer Creative Commons License