cari integral tak tentu (x²+1)² dengan cara

Bab Integral
Matematika SMA Kelas XI

∫ (x² + 1)² dx = ∫ (x⁴ + 2x² + 1) dx
                    = (1/(4 + 1)) . x⁴⁺¹ + (2/(2 + 1)) . x²⁺¹ + x
                    = (1/5) x⁵ + (2/3) . x³ + x