Express the integrand as a sum of partial fractions and evaluate the integral.
-$$\int \frac { 4 x ^ { 4 } + 36 x ^ { 2 } + 72 } { x \left( x ^ { 2 } + 6 \right) ^ { 2 } } d x$$
A) $2 \ln | x | + \ln \left| x ^ { 2 } + 6 \right| - \frac { 4 } { x ^ { 2 } + 6 } + C$
B) $2 \ln | x | - \frac { 4 } { x ^ { 2 } + 6 } + C$
C) $2 \ln | x | + \ln \left| x ^ { 2 } + 6 \right| + C$
D) $8 \ln | x | + \ln \left| x ^ { 2 } + 6 \right| + C$

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The Answer of Express the integrand as a sum of partial fractions and evaluate the integral.
-$$\int \frac { 4 x ^ { 4 } + 36 x ^ { 2 } + 72 } { x \left( x ^ { 2 } + 6 \right) ^ { 2 } } d x$$
A) $2 \ln | x | + \ln \left| x ^ { 2 } + 6 \right| - \frac { 4 } { x ^ { 2 } + 6 } + C$
B) $2 \ln | x | - \frac { 4 } { x ^ { 2 } + 6 } + C$
C) $2 \ln | x | + \ln \left| x ^ { 2 } + 6 \right| + C$
D) $8 \ln | x | + \ln \left| x ^ { 2 } + 6 \right| + C$

Express the Integrand as a Sum of Partial Fractions and Evaluate