solve for the above

. Find the indefinite integral [x (3 + x ) dx. A) 30(3 + x ) +C B) (3+ x6 ) +C 30 C) (3+x) + C 5 D) (3+x ) +C 30 E) (3+ x6) + C 18 ". Find the indefinite integral [(1+ 5t) di . A) 4(1+5t)*+C B) (1+5t) + C 3 C) (1+5t) + + C 4 D) (1+5t)+ +C 20 E) (1 + 5t)+ + C 15