S: e^u dx. In this instance we are still integrating the intergrand in regards to x so we much switch it so that we space integrating in regards to u, we execute this by separating u=2x. This amounts to du/dx=2. Through simple re-arrangement we gain dx= 0.5du. Currently we cna sub this right into our brand-new integral.

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0.5S: e^u du. E to any kind of power, when incentregalilee.comrporated is simply e centregalilee.comme that same power so we gain 0.5e^u. 

Now all that"s left is to sub back in the value of u i m sorry then turns our answer centregalilee.comme 0.5e^(2x)

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