Everythingdawg Everythingdawg 06-01-2021 Mathematics contestada After arranging the terms in descending powers of a variable, select the opposite of the polynomial. 9 - 12n2 + 4n3 - 7n 4 n3 + 12 n2 + 7 n + 9 -4 n3 - 12 n2 + 7 n - 9 4 n3 - 12 n2 - 7 n + 9 -4 n3 + 12 n2 + 7 n - 9