Use a Table of Integrals to Evaluate the Integral $$\int x \sqrt { 3 + 3 x } d x$$

Multiple Choice

Use a table of integrals to evaluate the integral. Select the correct answer.
$$\int x \sqrt { 3 + 3 x } d x$$

A) $\frac { 2 \sqrt { 3 } } { 15 } ( 3 x - 1 ) ( x + 1 ) ^ { 3 / 2 } + C$
B) $\frac { 2 \sqrt { 3 } } { 15 } ( 3 x - 2 ) ( x + 1 ) ^ { 3 / 2 } + C$
C) $\frac { 2 \sqrt { 3 } } { 15 } ( 3 x - 2 ) \sqrt { x + 1 } + C$
D) $\frac { 2 } { 15 } ( 3 x - 2 ) \sqrt { x + 1 } + C$