Evaluate the following integrals I 1. x² - x 1+3x²2x³ dx J₁ 2. /1+2 I dx 1 + 2 sin r ²+2 3. da x + 1 3x5 2r³+5x² - 2 2³ +1 dx 4. 5. 6. √32² log4 (2²2) I (log4 x)² x dx dx

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A: Please refer to the image below

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A: =?