content area top Part 1 Evaluate the indefinite integral by using the substitution uequals x cubed plus x squared to reduce the integral to standard form. Integral from nothing to nothing left parenthesis x cubed plus x squared right parenthesis Superscript 9 Baseline left parenthesis 3 x squared plus 2 x right parenthesis font size decreased by 6 dx Question content area bottom Part 1 Integral from nothing to nothing left parenthesis x cubed plus x squared right parenthesis Superscript 9 Baseline left parenthesis 3 x squared plus 2 x right parenthesis font size decreased by 6 dx equalsenter your response here