3x + x Suppose you use substitution to evaluate the definite integral da. Which of the following 2x3+ 22 - 2 expressions could you get as your result? Select one alternative: du u - du o / ?, du 1 O du 2u8x - 2 d. Which of the following Suppose you use substitution to evaluate the definite integral 2x2 - x + 3 expressions could you get as your result? Select one alternative: O du u H o du u u O du 2 1 O du 2u4x + 1 Suppose you use substitution to evaluate the definite integral da. Which of the following 4x2 + 2x + 3 expressions could you get as your result? Select one alternative: O du u of du 1 O du 2u O du