31.

Evaluate 3 points dx 25 + 9x2 In ( 25 + 9x 2 ) 3 + 0 In ( 25 + 9x 2 ) 75 + C OH OM None of the above 3x arctan 15 + C Oo OK 3x arctan + C OPEvaluate 3 points 3 - 2x +5x2 - 2x3 dx 1 - 2x 3 - x- - 3In V1 - 2x +C 2x-3 3 - 3 In V1 - 2x + C OH OM x 2 - 3In V/1 - 2x + C None of the above OK Oo 3 - x - In V1 - 2x + C OP