How do you simplify #(−a^6−5a^3+4a^2)+(−6a^6+5a^5−4a^2)#? Algebra Polynomials and Factoring Addition and Subtraction of Polynomials 1 Answer Don't Memorise Jun 11, 2015 # color(blue)(-7a^6) −5a^3+5a^5# Explanation: #−a^6−5a^3+4a^2 −6a^6+5a^5−4a^2# Grouping like terms: # color(blue)(−a^6−6a^6) +color(red)(4a^2-4a^2)−5a^3+5a^5# # = color(blue)(-7a^6) +color(red)(0) −5a^3+5a^5# # = color(blue)(-7a^6) −5a^3+5a^5# 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 1312 views around the world You can reuse this answer Creative Commons License