AP Calculus ABeasymcq1 pt
If f(x) = 3x⁴ - 2x² + 5, then f'(x) =
A.3x³ - 2x
B.12x³ - 2x
C.12x³ - 4x + 5
D.12x³ - 4x
Explanation
Core Concept
Using the power rule: d/dx(3x⁴) = 12x³, d/dx(-2x²) = -4x, d/dx(5) = 0. So f'(x) = 12x³ - 4x.
Correct Answer
D12x³ - 4x
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