Question

(2a^4-4a^3+3a^2+15a)+(a^5+12a^3+8a^2-3a+2)+(-5a^4+a^2-9a-5)

Answer 1

I get a^5-3a^4+8a^3+12a^2+3a-3

Answer 2

\[a^5-3a^4+8a^3+12a^2+3a-3\]

Answer 3

\[a^5-3 a^4+8 a^3+12 a^2+3 a-3\]

Answer 4

yup!