Question 1140606
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DO NOT expand the whole expression before taking the derivative!!!<br>
Although it gets a bit complicated, it is a straightforward application of the product and power rules.<br>
You won't learn anything by having us show you the answer.  Try it yourself and then re-post the problem, SHOWING the work you have done, if you need help with it.<br>
Note there are many possible forms of the answer.  If you use the product and power rules, the derivative will have two terms with a common factor of<br>{{{((1+4x)^4)*((3+x-x^2)^7)}}}<br>
You might be required to express the derivative using this common factor.