minta tolong dongg penyelesaian integral (x+1)^3 dx

int (x + 1)³ dx
bisa langsung atau substitusi
u = x + 1
du = 1 dx
= 1 int u³ du
= int u³ du
= (1/4)u^4 + c
= (1/4)(x + 1)^4 + c