You can put this solution on YOUR website! find the opposite and the reciprocal of the polynomial.
5n^3
The opposite of a given polynomial is the additive inverse of it.
It is got by changing the sign of every term of the polynomial.
The opposite of the polynomial 5n^3 is given by
(-5n^3)
The reciprocal of the polynomial (5n^3) is given by
[1/(5n^3)] (of course n not zero)