Use a change of variables to evaluate the following indefinite integral. ( Vx + 1 ) 8 dx 21X Determine a change of variables from x to u. Choose the correct answer below. OA. U= (V X + 1) 8 XB. U= X 1 O C. U= 21X *D. U= 1X + 1 Write the integral in terms of u. ( ( vx + 1) 8 21x dx = (u8 ) du Evaluate the integral. ( (vx + 1) 8 dx = 21xUse a change of variables or the accompanying table to evaluate the following indefinite integral. 7x - 2 dx Click the icon to view the table of general integration formulas. Determine a change of variables from x to u. Choose the correct answer below. O A. U= 7x OB. U=7 1 O C. U= 7x - 2 D. U=7x - 2 Write the integral in terms of u. 7 x - . dx = Tu du Evaluate the integral. 7x - 2 dx =Use a change of variables or the accompanying table to evaluate the following indenite integral. I 64X d X 34x + 2 a Click the icon to view the table of general integration formulas. Determine a change of variables from x to u. Choose the correct answer below. H L X U V u=e4x+2 Write the integral in terms of u. I 84X J\\ 1 dx= du Evaluate the integral. I e4x dx=|:| 64x +2