# If y = (5x3 – 4x2 – 8x)9, then dydx is ______ - Mathematics and Statistics

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If y = (5x3 – 4x2 – 8x)9, then ("d"y)/("d"x) is ______

#### Solution

9(5x3 – 4x2 – 8x)8(15x2 – 8x – 8)

Concept: Derivatives of Composite Functions - Chain Rule
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