(−1
2 )(n^3)+
1
2 n^2+4.6n+(−
1
2)(n^3)+
1
2 n^2+4.5n
=
−1
2 n^3+
1
2 n^2+4.6n+
−1
2 n^3+
1
2 n^2+4.5n
Combine Like Terms:
=
−1
2 n^3+
1
2 n^2+4.6n+
−1
2 n^3+
1
2 n^2+4.5n
=(−1
2 n^3+
−1
2 n^3)+(
1
2 n^2+
1
2 n^2)+(4.6n+4.5n)
=−n^3+n^2+9.1n
Answer:
=−n^3+n^2+9.1n
Everything underlined means its a fraction/divided hope this helps :D
