Combine like terms.
-$$9 n - 2 n ^ { 4 } + 9 n + 9 n ^ { 4 }$$
A) $18 n - 2 n ^ { 4 } + 9$
B) $9 n + 7 n 4 + 9$
C) $9 n + 5 n ^ { 4 }$
D) $18 n + 7 n ^ { 4 }$

Name: Combine like terms. -\[9 n - 2 n ^ { 4 } + 9 n + 9 n ^ { 4 }\] A) $18 n - 2 n ^ { 4 } + 9$ B) $9 n + 7 n 4 + 9$ C) $9 n + 5 n ^ { 4 }$ D) $18 n + 7 n ^ { 4 }$
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Question

Quizplus · Accepted Answer

Combining like terms, $9n + 9n = 18n$ and $-2n^4 + 9n^4 = 7n^4$, resulting in $18n + 7n^4$.

Combine Like Terms 9n−2n4+9n+9n49 n - 2 n ^ { 4 } + 9 n + 9 n ^ { 4 }9n−2n4+9n+9n4

Combine Like Terms $9 n - 2 n ^ { 4 } + 9 n + 9 n ^ { 4 }$