How do you combine #(7m + 9n + 6p) - (4m + 2n + 5p)#? Algebra Polynomials and Factoring Addition and Subtraction of Polynomials 1 Answer Alan P. Jul 22, 2015 Group the terms with identical variables to get: #color(white)("XXXX")##3m +7n +p# Explanation: #(color(red)(7m+9n+6p)) - (color(blue)(4m+2n+5p))# #color(white)("XXXX")##= [color(red)(7m) - color(blue)(4m)] + [color(red)(9n)- color(blue)(2n)] + [color(red)(6p) - color(blue)(5p)]# #color(white)("XXXX")##=3m +7n +p# Answer link Related questions How do you add two polynomials? How do you subtract two polynomials? How do you add and simplify #3x^2-4x+7# and #2x^3-4x^2-6x+5#? How do you subtract #5b^2-2a^2# from #4a^2-8ab-9b^2#? How do you simplify #(6.9a^2-2.3b^2+2ab)+(3.1a-2.5b^2+b)#? How do you simplify #(-t+15t^2)-(5t^2+2t-9)#? How do you subtract #(-5m^2-m)-(3m^2+4m-5)#? How do you add two polynomials if they don't have like terms? How do you simplify #(3a+4b)-(-6a-3b)#? How do you subtract #(x^2-8x+7)-(6x^2+7x-3)#? See all questions in Addition and Subtraction of Polynomials Impact of this question 1841 views around the world You can reuse this answer Creative Commons License