How do you factorize #20p + 15pq - 60q^2-80q# completely? Algebra Polynomials and Factoring Factoring by Grouping 1 Answer MattyMatty Dec 2, 2017 #5(4+3q)(p-4q)# Explanation: #= 20p-80q+q(15p-60q)# #= 20(p-4q) + 15q(p-4q)# #= (20+15q)(p-4q)# #= 5(4+3q)(p-4q)# 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 1672 views around the world You can reuse this answer Creative Commons License