Differentiate $x ^ { 4 }$ + 5 $x ^ { 3 }$

question 169

Multiple Choice

Differentiate.
-f(x) = 2 $x ^ { 4 }$ + 5 $x ^ { 3 }$ + 6

• A) f'(x) = 4 \(x ^ { 3 }\) + 3 \(x ^ { 2 }\)
• B) f'(x) = 4 \(x ^ { 3 }\) + 3 \(x ^ { 2 }\) - 7
• C) f'(x) = 8 \(x ^ { 3 }\) + 15 \(x ^ { 2 }\) - 7
• D) f'(x) = 8 \(x ^ { 3 }\) + 15 \(x ^ { 2 }\)

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