Find the derivative of each of the following functions, first by using the product rule, then by multiplying each function out and finding the derivative of the higher-order polynomial. post both solutions using the canvas equation editor along with explanations of the intermediate steps that demonstrate your understanding of the derivative
1. (4x + 6)(9x-5)
2. 4x^2(3x^3 -2x^2 +5x)
3. (3x^2 -x + 1)(7-x^6)
4. (h^3 -5)(3h^2 -5h - 4)

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20 points for the brainliest? drag each tile to the correct box. not all tiles will be used. arrange the steps to solve the equation . plz

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.