Differentiate y$=(8$x$+1)3(2$x$1)3$ by using the chain rule

Consider y$=$f$[$g$($x$)]$

First, specify the functions f$[$g$($x$)]$ and g$($x$)$ for the composite functions

f$[$g$($x$)]=(8$x$+12$x$1)3$

Incorrect answer.

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g$($x$)=8$x$+12$x$1$

Correct answer, well done.

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Now obtain the derivative

dydx$=30(8$x$+1)2(2$x$1)4$

Correct answer, well done.

Marks for this submission: $0\mathrm{.}33/0\mathrm{.}33.$