Evaluate ∫ (3x²+2x)√(x³+x²+1) dx.

Options

• Option A

  (x³+x²+1)³ᐟ²/3+C

• Option B

  2√(x³+x²+1)+C

• Option C

  (x³+x²+1)²/2+C

• Option D

  2(x³+x²+1)³ᐟ²/3 + C