Question

Add!:
(2a^4-a^3+5a^2+16a-11)+(a^5+8a^3+5a^2-5a+6)+(-5a^4+a^2-6a-4)

Answer 1

bunch of combining like terms
i.e. terms with the same exponent

Answer 2

(2a^4-a^3+5a^2+16a-11)+(a^5+8a^3+5a^2-5a+6)+(-5a^4+a^2-6a-4)
=2a^4-a^3+5a^2+16a-11+a^5+8a^3+5a^2-5a+6-5a^4+a^2-6a-4
=a^5+2a^4-5a^4-a^3+8a^3+5a^2+5a^2+a^2+16a-5a-6a+6-4-11
=a^5+(2-5)a^4+(8-1)a^3+(5+5+1)a^2+(16-5-6)a+(6-4-11)
=...?