Tolong ya kak jawabannya

Soal integral matematika SMA kelas XII
Jawabanyya = A.

Int (4x + 1)(x^2 + 2x - 1) dx
= Int (4x^3 + 8x^2 - 4x + x^2 + 2x - 1) dx
= Int (4x^3 + 9x^2 - 2x - 1) dx
= (4/4) x^4 + (9/3) x^3 - (2/2) x^2 - x + C
= x^4 + 3x^3 - x^2 - x + C

^ = pangkat