(-11a^4+9a+11a^3)-(-10a-3a^3+2a^4)

Question

It's simplifying each expression these are the possible answers

A.)-13a^4+a^3+5a  B.)-13a^4+13a^3+5a

C.)-13a^4+14a^3+19a D.)-13a^4+14a^3+5a

Answer 1

(-11a^4 + 9a +11a^3)-(-10a - 3a^3+2a^4)

-11a^4 + 9a  + 11a^3 + 10a + 3a^3 - 2a^4

-13a^4 + 14a^3 + 19a  the answer is C