How do you factor the expression #4x+12#? Algebra Polynomials and Factoring Factoring Completely 1 Answer Nam D. Mar 20, 2018 #4(x+3)# Explanation: We have: #4x+12# #=4*x+4*3# Taking out the common factor, that is #4#. Then, put the remaining "residue" into the parenthesis, along with the same operation sign. #=4(x+3)# 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 8398 views around the world You can reuse this answer Creative Commons License